Cooling Treatment

1

2

Deals 1 Hydro DMG.

Surfshark Wavebreaker

2

Attach Bitey Shark

Bitey Shark

After either side switches characters, and Mualani is the active character: Spend 1 Nightsoul point to apply When receiving damage dealt by Mualani or Shark Missile: Remove this effect. For each stack, increase the damage by 2.
(Stacks are accumulative, with no limit.) to the opposing active character.
When the active character is equipped with a Technique card, they can use the corresponding Technique.
Using a Technique counts as a Combat Action. If the character is unable to use Skills due to conditions like Frozen, Petrification, or Stun, they are also unable to use the Technique.
Using a Technique is not considered as using a Skill. Therefore, it cannot trigger effects such as "After using a skill" or "After the character triggers an Elemental Reaction." Damage dealt by using a Technique is not considered Damage dealt by the character.: S1121422
When the character to which this is attached has 0 Nightsoul points, discard this card. When this card is discarded, the character to which this is attached has their The character to which this is attached accumulates "Nightsoul points." (Max 2 points) end.

to self, then enter $common.gcg.C112141 and gain 2 "Nightsoul points." (This skill cannot be used after the character enters $common.gcg.C112141)
(Characters with Bitey Shark

Bitey Shark

After either side switches characters, and Mualani is the active character: Spend 1 Nightsoul point to apply When receiving damage dealt by Mualani or Shark Missile: Remove this effect. For each stack, increase the damage by 2.
(Stacks are accumulative, with no limit.) to the opposing active character.
When the active character is equipped with a Technique card, they can use the corresponding Technique.
Using a Technique counts as a Combat Action. If the character is unable to use Skills due to conditions like Frozen, Petrification, or Stun, they are also unable to use the Technique.
Using a Technique is not considered as using a Skill. Therefore, it cannot trigger effects such as "After using a skill" or "After the character triggers an Elemental Reaction." Damage dealt by using a Technique is not considered Damage dealt by the character.: S1121422
When the character to which this is attached has 0 Nightsoul points, discard this card. When this card is discarded, the character to which this is attached has their The character to which this is attached accumulates "Nightsoul points." (Max 2 points) end.

attached can use the Technique: $common.gcg.S1121422)

Boomsharka-laka

3

2

Deals 2 Hydro DMG, summons Shark Missile

Shark Missile

End Phase: Deal 2 Applies Hydro and can trigger the following Elemental Reactions:
Vaporize: DMG +2 for this instance
Electro-Charged: DMG +1 for this instance, deal 1 Piercing DMG to all opposing characters except the target.
Frozen: DMG +1 for this instance, the target is unable to perform any Actions this Round. (Can be removed in advance after the target receives +2 Physical or Pyro DMG)
Bloom: DMG +1 for this instance, creates a Dendro Core that grants +2 DMG to the next instance of Pyro or Electro DMG.
Lunar-Charged: Creates a Thundercloud that deals 2 Electro DMG at the end of the Round. (Usage: 1. Can stack, no stack limit. When created, or when its usages increase, apply Electric Shock to a random card in your opponent's Hand.)
Lunar Bloom: Deal +1 DMG for this instance, and apply Cost Reduction to a random card in your Hand.
Lunar-Crystallize: This DMG +1, and create 1 Moondrift Harmony that can summon and enhance Moondrift and add it to your Hand..
After this card's effect is triggered, 1 Usage of it will be consumed.
This card will be discarded immediately once it has 0 Usages remaining.: 2 (Can stack, no stack limit)

.

Source: Reward for inviting Mualani to a duel at The Cat's Tail and claiming victory in a Friendly Fracas with her