Hydra is a 1-cost Purple event from Paramount War (OP02-090), C rarity. Tracked TCGPlayer market price: $0.09 as of 2026-06-18. Power 3000. Effect: [Main] DON!! −1 (You may return the specified number of DON!! cards from your field to your DON!! deck.): Give up to 1 of your opponent's Characters −3000 power during this turn. [Trigger] If your opponent has 6 or more DON!! cards on their field, your opponent returns 1 DON!! card from their field to their DON!! deck. Impel Down