I recommend to read this post in dark mode.
Hello and welcome to this Deepspace Anchor: First Light - Senadina Guide!
I hope I'll be able to help you, let's start~
Note: This guide is based on the BETA. Officially released content might differ.
✦ Table of contents ✦
Short overview
Source
Kit & Skills
Rank-ups
Weapon Syncs
Team & Rotation
Gameplay examples
Conclusion
✦ Short overview ✦
Senadina is here as our first actual Stardust DPS!
Shes's the first S rank Valkyrie of part 2 and performs as a Lightning DPS having 2 teams - the "mars trio" and the usual Lightning team.
Also part two introduces the new Astral Ring mechanic~
She's the honestly only good character of 7.3, so let's take a more detailed look at her~
✦ Source ✦
Senadina can also be obtained in gacha, her first supply will be in 7.3:
It's a normal expansion banner, meaning you're guaranteed to get her within 90 pulls.
...or whatever your current expansion pity is. Minus 10.
On the global servers, this banner releases on February 29th and end on March 29th.
✦ Kit & Skills ✦
*Numbers and skills based on S.0 Rank
Lemme warn u beforehand, her skills contain a bunch of text 
✧ General information ✧
Senadina is a Stardust Lightning Valkyrie who uses Drive Cores.
Also she's a part 2 valkyrie and therefore has the Astral Ring mechanic~
The team deals 30% additional Stardust Remnant DMG (feature of SD enemies) to the max HP of Stardust enemies with Senadina on the team (=> "Stardust Navigation state")
*doesn't stack with Griseo's effect
➤ Leader Skill
When selecting Senadina as leader, all team members gain following buffs:
✧ Activates Astral Ring Specialization: World Star.
✧ Astral Ring Intensivity costs 150 SP; Stellar Outburst lasts 25s and has 25s CD.
✧ When the team has 1 member with Domain Resonance tag, all weapon skills deal 20% / 25% (S3) / 30% (SS3) more Elemental DMG
✧ When the team has 2 members with Domain Resonance tag, the character's Resonance mark can be triggered 2 more times and Stellar Drain restores 5 bonus Astral Ring Intensity.
✧ When the team has 3 memers with the Domain Resonance tag, enemies take 20% / 25% (S3) / 30% (SS3) more Elemental DMG from Resonance Skills (independent)
✧ QTE ✧
Triggered when the enemy is time-slowed, knocked airborne or a teammate uses a weapon skill
Deals 1000% ATK of Lightning DMG; shortens Overheat (=> Special Bar) by 4s; gain 1 stack of Thunderous Pulse (=> Thunderous Strike) for 3s upon hitting an enem
✧ Combo ATK ✧
Hold [ATK] to use her Combo ATK
➤ on the ground
When you're currently on the ground, Senadina jumps into midair.
Deals 50% ATK of Lightning DMG; knocks enemies airborne
➤ in midair
When you're currently in midair, Senadina jumps back onto the ground.
Deals 100% ATK of Lightning DMG; knocks enemies to the ground
✧ Basic ATK ✧
➤ on the ground
Senadina has 4 Basic ATK Sequences.
SEQ 1: Deals 160% ATK of Lightning DMG
SEQ 2: Deals 260% ATK of Lightning DMG
SEQ 3: Deals 710% ATK of Lightning DMG
SEQ 4: Deals 500% ATK of Lightning DMG; grants 1 stack of Thundering Pulse for 3s; shortens Overheat by 1s (=> Special Bar)
For every Stardust Remnant picked up by team members SEQ 4 deals 60% ATK of additional Lightning DMG; max 15 stacks
➤ in midair
Senadina has 4 Basic ATK Sequences.
SEQ 1: Deals 230% ATK of Lightning DMG
SEQ 2: Deals 220% ATK of Lightning DMG
SEQ 3: Deals 680% ATK of Lightning DMG
SEQ 4: Deals 500% ATK of Lightning DMG; grants 1 stack of Thundering Pulse for 3s; shortens Overheat by 1s (=> Special Bar)
For every Stardust Remnant picked up by team members SEQ 4 deals 60% ATK of additional Lightning DMG; max 15 stacks
Note: Her aerial Basic ATK Sequence deals 50% ATK of Lightning DMG more than her ground Basic ATK
✧ Evasion Skill ✧
CD: 15s
Trigger Ultimate Evasion Skill by evading enemies timely.
Triggers 2s of Global Time Fracture; gathers Stardust Remnants
Hold [EVA] for Senadina to slide on her weapon.
Tap [ATK] while sliding to connect into Basic ATK SEQ 3 and trigger Ultimate Evasion Skill
✧ Weapon Active ✧
CD: 3s (can't be decreased) | SP: 0
Deals 50% ATK of Lightning DMG
✧ Thunderous Strike ✧
When Senadina has a stack of Thunderous Pulse, tap [WA] to use Thunderous Strike
*Thunderous Strike is considered a Combo ATK.
Thunderous Strike has different effects depending on wether Senadina is currently in Thunderous Blazar state or not.
When she's currently not in Thunderous Blazar state:
Consumes Thunderous Pulse stack; deals 400% ATK of Lightning DMG; enters Thunderous Blazar state for 8s; gathers all Stardust Remnants
Can be connected into Basic ATK SEQ 4 by tapping [ATK]
When she's currently in Thunderous Blazar state:
Consumes Thunderous Pulse stack; deals 1250% ATK of Lightning DMG; grants 1 stack of Thunderous Pulse for 3s upon hitting an enemy; marks enemies for 10s (=> Thunderous Blazar)
This ATK replaces the weapon skill with Thunder in Clear Skies.
✧ Special Bar - Thunderous Blazar ✧
Griseo has a Special Bar above her HP bar, showing her current Thunderous Blazar.
The Thunderous Blazar shows how much time she has left in Thunderous Blazar state.
It starts at 8s. During Thunderous Strike the timer stops.
Thunderous Blazar state is entered upon using Thunderous Strike outside of it.
Gain following buffs while in Thunderous Blazar state:
✧ Outside of Stellar Outburst weapon skills deal 20% more Lightning DMG and 10% Total DMG
✧ During Stellar Outburst Resonance deals 20% more Total DMG
✧ Marked enemies take 20% more Lightning DMG From Senadina
Visuals:
Outside of Thunderous Blazar state
8s of Thunderous Blazar state left
➤ Overheat
After Thunderous Blazar state ends or Senadina is switches out, she enters Overheat for 12s.
Her special bar then is purple and shows the time left until Overheat ends.
During Overheat Senadina gains following debuffs:
✧ She cannot regain Thunderous Pulse
✧ She cannot enter Thunderous Blazar state
Visuals:
✧ Thunder in Clear Skies ✧
Tap [WA] within 3s after using Thunderous Strike in Thunderous Blazar state to use Thunder in Clear Skies.
Deals 1600% ATK of Lightning DMG; reduces Thunderous Blazar state's duration by 2s
Upon hitting an SD-type enemy one Stardust Remnant will be generated.
✧ Ultimate ✧
CD: 30s (20s when Astral Ring is inactive) | SP: 100
*All timers are frozen during this animation
Deals 2720% of Lightning DMG
✧ Astral Ring ✧
When Senadina is chosen as leader Astral Ring Specialization: World Star is activated.
When Astral Ring is inactive gain following buffs:
✧ Deal 43% more Lightning DMG
✧ Thunder in Clear Skies deals 300% ATK of additional Lightning DMG
✧ Enemies take 36% more DMG from Senadina (independent)
When Astral Ring is active gain following buffs:
✧ Weapon skills deal 20% more Total DMG
When Astral Ring Specialization: World Star is activated gain following buffs:
✧ Characters with Domain Resonance tag deal 15% more Total DMG
✧ Characters with Domain Resonance tag gain 4,5% Elemental Breach for their weapon skills
✧ Enemies take 9% more Elemental DMG from weapon skills of characters with the Domain Resonance tag
✧ After using Thunder in Clear Skies or Lightning Flash Anchor team members gain 12% Elemental Breach and 25% Elemental DMG for 25s
➤ Stellar Outburst
Tap the AstralOP Ultimate to enter Stellar Outburst for 25s.
Astral Ring SP: 150 | CD: 25s + 25s
Deals 400% ATK of Lightning DMG; clears Overheat; grants 1 stack of Thunderous Pulse; grants 1 stack of Quantum Mech Energy
Gain following buffs during Stellar Outburst:
✧ Enemies take 12% more Elemental DMG from Resonance ATKs
✧ All team members deal 12% more Total DMG with Resonance ATKs
✧ Gains one stack of Inore Interrupt
✧ Ultimate deals 40% more Total DMG
Gain 1 stack of Stellar Drain when entering and when Stellar Outburst ends.
Thunder in Clear Skies consumes Stellar Drain and restores 10 additional Astral Ring Intensity.
➤ Lightning Flash Anchor
During Stellar Outburst Thunder in Clear Skies is replaced by Lightning Flash Anchor when a stack of Quantum Mech energy is available.
Tap [WA] within 3s after using Thunderous Strike in Thunderous Blazar state to use Lightning Flash Anchor.
*considered a Resonance ATK
Consumes 1 stack of Quantum Mech Energy and Thunderous Pulse; deals 1600% ATK of Lightning DMG
Upon hitting an SD-type enemy one Stardust Remnant will be generated.
Energy masses with Domain Resonance Mark are left on field after using this ATK.
When using another team member's Resonance Attack deal an additional 800% ATK of Lightning DMG (counts as weapon skill DMG) and restore 4 SP (1s CD)
Can be triggered up to 8 times. Energy masses are destroyed when Stellar Outburst ends.
✦ Rank-ups ✦
Analysis
✦ S1/2 ✦
S1 is some nice extra scaling. Considering you'll get S1 anyway when going for S2 it's pretty nice to get along the way.
Helps a lot in SD swarm fights. However, it's very niche rank-up. We got several SD swarm fights in 7.3, but that's not really the norm.
✦ SS ✦
Firstly, for abyss this is almost entirely useless. However, it's really useful in MA due to the additional TF. Additional scaling in MA though
✦ SS1 ✦
Pretty nice buffs, especially for the trio team it gives some additional Breach.
✦ SSS ✦
Absolutely insane during Stellar Outburst, HUGE DMG buff while it's active.
✦ Conclusion ✦
Her rank-ups mostly are really niche and don't work in any situation.
When going for rank-ups I recommend stopping at S2 or going for SS1+. But overall her rank-ups aren't needed, S0 will be enough.
✧ DMG comparison ✧
VBm/VBs - Stellar Outburst rotation
VBm/VBs - normal rotation
GD/LV
✧ Score comparison ✧
Only a small comparison but I tried to go over as many scenarious as possible.
Except for Alien Guard all listed abysses are newly added in 7.3; all tests done at 478D; score differences will be bigger in live Nirvana
Note: SR3; SSS A rank supports; S S rank supports; no perfect runs; SR1 on Cora/Helia
Short list of what the abysses represent:
Symphony weather: Currently pretty weird abyss as Sena's team only has 2 elements. Weird one but her best team is LV/HTR here. Phase 1 and 3 SD enemies; phase 2 neutral enemies.
Astral Ring weather: Pretty simple, new weather and Astral Ring rot is buffed. Also new team. 2 SD waves, one neutral wave.
Ignis Stellar: To show the use of S2 in SD swarm weather. 3 SD swarm waves.
SD Alien Guard: one enemy SD fight; usual lightning team
✦ Weapon Syncs ✦
Firstly, get her weapon. No weapon, no good Sena.
In 7.3 weapons get the feature that they can be synced up to Sync rank 3; starting at Sync 1 by getting weapon dupes.
Sena sync skill: Enemies take 4% (SR1) / 8% (SR2) / 12% (SR3) more Total DMG from weapon skill (independent & exclusive).
uh yeah... that's... a number!
For F2Ps definitely not recommended and whales will do what whales do. Up to 60 pulls difference between each sync rank.
✦ Team & Rotation ✦
✧ Supports ✧
Valkyrie Blastmetal - Coralie | Valkyrie Boltstorm - Helia
New """Trio""".
Need to be used together, they're used in situations in which you need the Astral Ring.
Generally second best choice when the currently best team isn't fully geared.
Lunar Vow: Crimson Love - Theresa
Meta Lightning Breach support.
Overall a really strong character.
Golden Diva - Eden
SP Lightning support.
She has craftable Stigmata and is farmable herself, so overall really cheap.
Herrscher of Truth - Bronya
Alternative to Luna for the most part.
During Symphony weather she replaces Eden.
✧ Rotation ✧
Note: Please remember that rotations can always differ based on the boss, the DMG needed and your overall situation. This is only the base rotation, if you want to be sure watch videos of players who know what they're doing.
FL / VBm / VBs
FL WA
VBs QTE -> WA -> WA (once charge is in the low marked area)
VBm QTE -> WA -> WA
FL QTE -> WA -> Basic ATK -> WA -> WA -> Ultimate -> Evasion -> Basic ATK x2 -> WA -> WA
Astral Ring
VBs QTE -> WA -> wait until it automatically ends
VBm QTE -> WAs until Quantum Mech energy is used up
FL QTE -> WA ->WA -> WA -> Ultimate -> Evasion -> Basic ATK x2 -> WA -> WA
Note: Support ults generally aren't used due to how time consuming they are; ideally use Astral Ring after Senadina's first Thunder in Clear Skies
GD / FL / LV
FL WA
LV QTE (hold ATK) -> Combo ATK -> WA -> Ultimate
GD QTE -> Ultimate
FL QTE -> WA -> Basic ATK -> WA -> WA -> Ultimate -> Evasion -> Basic ATK x2 -> WA -> WA
GD / FL / HTR
HTR WA -> Combo ATK -> Form switch -> Combo ATK -> Ultimate
GD QTE -> Ultimate
FL QTE -> WA -> Basic ATK -> WA -> WA -> Ultimate -> Evasion -> Basic ATK x2 -> WA -> WA
Note: HTR Ult can be skipped first rotation
LV / FL / HTR
HTR WA -> Combo ATK -> Form switch -> Combo ATK -> Ultimate
LV QTE (hold ATK) -> WA -> Ultimate
FL QTE -> WA -> Basic ATK -> WA -> WA -> Ultimate -> Evasion -> Basic ATK x2 -> WA -> WA
Note: Make sure you have either HTRs or LVs Ultimate every rotation; HTR Ult can be skipped first rotation
✧ Video example ✧
00:00 New "Mars Trio"
00:33 New "Mars Trio" - Astral Ring
01:31 Usual Lightning Team (GD/FL/LV)
02:09 Symphony weather team (LV/FL/HTR)
✦ Gameplay examples ✦
Note: Rotations aren't optimised for time reasons, only to give an example of how Senadina could be played
✦ Conclusion ✦
So then, is Senadina worth pulling?
I definitely recommend getting Senadina at S0 with SR1 weapon.
She's out first actual SD DPS and is liekly to stay it for a while. Also Astral Ring abysses will be a pain without her.
When going for more than S0SR1 I recommend going like
SS > SR3 > SSS
Then... she has supporting skills. Those aren't used to far but it's likely for them to be used soon.
She can provide 16,5% Elemental team Breach at S0 and other insane buffs. So if we get an Elemental DMG dealer who can use the Astral Ring Specialisation: World Star Senadina will most likely be the way to go.
Note: She has general Elemental DMG, meaning she can support Fire, Ice and Lightning Valkyries. Supporting buffs mostly require Astral Ring Specialisation: World Star.
As for newbies I'd consider her an absolute top pull.
Just her + her weapon allows the build of a super good team for new players considering how expensive it usually is to build a team.
However, keep in mind that Senadina has many flaws currently. Her Ultimate CD is too long for her rotations and the new trio isn't really strong when you have Luna and Eden fully geared. Also the Astral Ring CD is HORRIBLE as for now.
And Senadina still has a locked skill.
So when getting Sena also expect a new support for her to come soon, which would be a waste not to pull when having her. Just a little warning, Sena could get more expensive to properly build soon.
Credits
- Thanks to Cyxo and Alpaca for the pictures of Valkyrie icons and such!
- Love to Inari
How could I not - Thanks to herrscherofslack for CN screens
- Website for official wallpapers in case you're interested, here
test details
Thanks for reading my guide, I hope I was able to help you!
Have a great day 
EU/UID: 203184518
