Retain is an extremely powerful keyword, and keep in mind that Snap applies it to a card until the end of a fight, not just this turn.
Almost always happy to have one of these in my deck, and it's nice that it deals a little damage for fights as well.
The attack is underwhelming but adding Retain to a key block card or combo card can be crucial for some fights. The affected card keeps Retain for the whole battle.
Osty deals 5 damage. Whenever Osty hits this enemy this turn, Summon 2.
Whenever you apply a debuff to an enemy, they take 9 damage.
Osty deals 7 damage. Add Retain to a card in your Hand.
Deal 9 damage. Deals 2 additional damage for each Soul in your Exhaust Pile.
