Trait · passiveRain Curtain
While in your squad and still standing, allies carrying Wet take 18% less damage, and a further 6% less for each additional Water Lumi in your squad.
Lumi Master/Lumis
54–86
Rainkat
Rating 54–86WaterBattle
Job tagsPlanting
At a glance
- Why this tier
Rainkat is B as a Wet protector: Rain Curtain cuts damage for every Wet ally behind 98 DEF, but 88 ATK means it never carries. Jellistel supplies the Wet and survives longer.
- Best with
Shriegon×1
Clionia×1- In our teams1 of 23
- Rain CurtainLead, sets Rain and Wet · Pray for Rain
Rainkat's skills
Fixed kit always on Rainkat, can't be swapped
Signature skillElement Resonance
Fires an energy ball of this Lumi's own type at the current enemy; +10 power each time your side uses a skill of that type.
WaterCost 5Power 75
Basic attackTail Smack
Its automatic attack: a Water hit every 1s for 10 power.
WaterPower 10Interval 1s
Swappable skills choose which one to equip
WaveUsed in official line-ups
Hits the current enemy with +15 power per Wet stack on this Lumi. If it has no Wet, it gains 2 Wet instead.
WaterCost 4Power 15
Water RetreatUsed in official line-ups
Hits the current enemy and switches out; the Lumi coming in gains 1 Wet.
WaterCost 4Power 30
Charge Up
The next skill this Lumi uses (other than Charge Up) gains +40 power. Lost if it switches out.
NormalCost 4Power 0
Spray
Hits the current enemy; this Lumi keeps half of its Wet stacks instead of spending them.
WaterCost 5Power 80
Pray for Rain
Sets the weather to Rain, hits every enemy on the field and gives every Lumi on your side of the field 1 Wet.
WaterCost 5Power 40
Tidal Surge
Hits the current enemy. If this Lumi is not already carrying Wet, it gains 5 Wet.
WaterCost 8Power 60
Skills marked "Used in official line-ups" are the ones the game's own in-client line-ups equip on Rainkat. See those line-ups.
How to use Rainkat
Rainkat protects a Wet team. While it stands, Rain Curtain cuts damage for every ally carrying Wet by 18%, plus 6% per extra Water Lumi, and Pray for Rain hands your whole side Wet. 98 DEF keeps it standing. 88 ATK is weak, so it needs a Water carry beside it. Jellistel supplies the same Wet with more HP. Its best home is a full Rain team: beside Shriegon and Clionia, three Water Lumi, the cut reaches 30%, and Shriegon's skills cost 2 less while its Rain lasts.
Teams with Rainkat
- Rain CurtainPvP · Weekly tournament
Three Water Lumi under Rain. Rainkat's Pray for Rain sets the weather and gives your whole side Wet, and with three Water Lumi in the squad Rain Curtain cuts the damage every Wet ally takes by 30%. Shriegon's skills cost 2 less in Rain, and Tidal Force gains 20% damage for every point saved. Clionia picks up a Wet stack every time an ally casts, and Wave Rush turns each stack into a Leech on the enemy and a heal for your squad.
Compared with
The strongest Battle on the tier list and the ones placed just above Rainkat, strongest first.
Recommended build
The game's own in-client line-ups run Rainkat with Water Retreat equipped: 3 official setups below, plus the materials it levels, stars up and evolves with.
Trait & signature skill (fixed)Rain CurtainTraitElement ResonanceSignature skill
Rain CurtainTraitElement ResonanceSignature skillRain Curtain: While in your squad and still standing, allies carrying Wet take 18% less damage, and a further 6% less for each additional Water Lumi in your squad. Element Resonance: Fires an energy ball of this Lumi's own type at the current enemy; +10 power each time your side uses a skill of that type.
Skill to equipWater RetreatChosen in 2 of 3 official setupsWaveChosen in 1 of 3 official setups
Water RetreatChosen in 2 of 3 official setupsWaveChosen in 1 of 3 official setupsTrainer skill
ShieldRun in 2 of 3 official setups
HealingRun in 1 of 3 official setups
ShieldRun in 2 of 3 official setupsHealingRun in 1 of 3 official setupsShield: Applies a shield to your own Lumi on the field, making them immune to the enemy's next skill damage and debuff. Expires upon leaving. Healing: Restores 30% of Max HP to ally Lumi on the field.
Level up & ascension
Sharkitten KeepsakeLevels up and ascends this line
Universal KeepsakeSwaps in for any Keepsake
Sharkitten KeepsakeLevels up and ascends this lineUniversal KeepsakeSwaps in for any KeepsakeStar Up
Sharkitten StarcoreRaises this line's star level
Universal StarcoreSwaps in for a regular or variant Lumi's Starcore
Sharkitten StarcoreRaises this line's star levelUniversal StarcoreSwaps in for a regular or variant Lumi's StarcoreEach star adds damage dealt and cuts damage taken: ★1 +5% / -5%, up to ★5 +25% / -25%.
The Trait and Signature Skill come with this Lumi and can't be changed, so they set what the rest of the build is for. The skill and trainer skill picked above are the game's own — read straight off its official in-client line-ups on the Official Line-ups page. The Keepsake, Starcore and evolution materials are this line's own real items, from the game's own tables. Star Up's damage/mitigation numbers are the game's own published curve.
Type matchup
Takes extra damage from
Grass×2
Electric×2
Grass×2Electric×2Takes reduced damage fromWater×0.5
Fire×0.5
Steel×0.5
Water×0.5Fire×0.5Steel×0.5Recomputed from the game's own type chart against this Lumi's type(s) — dual types multiply. See the full Type Chart for every match-up.
Evolution line
Stage 1
Sharkitten can become any of 8 forms at Lv. 15. Elemental Crystals steer which one it turns into, and Advanced Elemental Crystals let you pick the form outright.
Attributes
MaxMin
| Min | Max | |
|---|---|---|
 ATK | 56 | 88 |
 DEF | 66 | 98 |
 HP | 64 | 96 |
 Work | 30 | 62 |
| Attack Speed | Roster average1s | |
Each column is the species' own Min–Max range at its reference level — the exact spread the in-game Aptitude tab shows (an individual catch rolls somewhere inside it). See the Stat Rankings to sort the whole roster by any of these. Attack Speed is the Skill tab's Attack Interval: the seconds between automatic basic attacks, fixed per species, so lower is faster. Every basic attack deals the same damage per second, so a quicker one lands more hits rather than more damage, which is what on-hit effects care about. Each Swift stack speeds it up by 10% and each Paralysis stack slows it by 10%.
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