Tempest Sage Irena Aura Wind

Max rarity ★5, 3 evolution forms. Skills and Lv99 stats are listed for each form.

Base: Irena Cyclone-Seer (★4)

Active skill: Healing SpringHeal 25% HP ／ Target: shared party HP (effectively whole party) ／ Stacking: healing fires per member separately and stacks. You can never heal past max HP
Trigger: Triggers when HP ≤ 30%
Cooldown: 19 drops initially, down to 13 drops (Rechargeable)
Leader skill: Prismatic HarmonyEach element type in your party adds another 0.28× of damage (on top of the base 1×; reaches up to 3× at 8 types) ／ Combining: when the leader and sub-leader share the same effect, their multipliers multiply together. They also multiply with an active skill's damage multiplier (only the single highest one if several are active at once)
Lv99 stats: HP 5269 ATK 537 Heal 257

Active skill: Culling HandOn use, select and remove up to 6 jewels. Fallen jewels merge on the next drop ／ Target: the board (the drop/chain itself) ／ Stacking: affects the board. The same type refreshes its duration. It does not change damage multipliers
Trigger: Triggers when HP ≤ 100%
Cooldown: 25 drops initially, down to 17 drops (Rechargeable)
Leader skill: Prismatic HarmonyEach element type in your party adds another 0.28× of damage (on top of the base 1×; reaches up to 3× at 8 types) ／ Combining: when the leader and sub-leader share the same effect, their multipliers multiply together. They also multiply with an active skill's damage multiplier (only the single highest one if several are active at once)
Lv99 stats: HP 9273 ATK 805 Heal 386

Active skill: Grand AscensionUpgrade every jewel on the board one rank (×2, like 2→4). Matches that form merge on the next drop ／ Target: the board (the drop/chain itself) ／ Stacking: affects the board. The same type refreshes its duration. It does not change damage multipliers
Trigger: Triggers on 4-chain
Cooldown: 27 drops initially, down to 18 drops (Rechargeable)
Leader skill: Boundless CascadeMax falling jewel value +2 steps (1 step = ×2, always on) — easier big numbers ／ Combining: an always-on effect. Both the leader and sub-leader apply at the same time
Lv99 stats: HP 15807 ATK 1349 Heal 680