Voracious Hydra [Core Set 2020 Prerelease Promos] Jellyfish Hydra Beast including this card

including this card

Whenever an Equipment enters the battlefield under your control

"The Cosmos Serpent carved these tunnels

for this ancient weapon of war is our salvation

Sacrifice five artifacts: Take an extra turn after this one

Voracious Hydra [Core Set 2020 Prerelease Promos] Jellyfish Hydra Beast including this cardSet: Core Set 2020 Prerelease Promos Type: Creature Hydra Rarity: Rare Cost: {X}{G}{G} Trample Voracious Hydra enters the battlefield with X +1 +1 counters on it. When Voracious Hydra enters the battlefield, choose one Double the number of +1 +1 counters on Voracious Hydra. Voracious Hydra fights target creature you don't control.