Kalonian Hydra [The List] Duel Terminal 1 When you do this

When you do this

Vampire Nocturnus and other Vampire creatures you control get +2/+1 and have flying

Set: Dark Revelation Volume 3 Card type: Effect Monster Rarity: Ultra Rare Attack: 2700 Defense: 1500 This card gains 500 ATK for each other Machine-Type monster on the field

Set: Ancient Guardians Card type: Synchro/Effect Monster Rarity: Collector's Rare Attack: 700 Defense: 1000

Set: Invasion: Vengeance Card type: Fusion/Effect Monster Rarity: Secret Rare Attack: 2800 Defense: 2000 2 DARK monsters on the field

Kalonian Hydra [The List] Duel Terminal 1 When you do thisSet: The List Type: Creature Hydra Rarity: Mythic Cost: {3}{G}{G} Trample Kalonian Hydra enters the battlefield with four +1 +1 counters on it. Whenever Kalonian Hydra attacks, double the number of +1 +1 counters on each creature you control. Even baloths fear its feeding time.