Svella, Ice Shaper [Kaldheim] SWSH143 Engine of Ruin or another

Engine of Ruin or another nontoken Hydra you control dies

if it's attacking

Set: Secret Lair Drop Series Type: Basic Snow Land — Mountain Rarity: Rare ({T}: Add {R}

Reverse Type: Token Artifact Creature — Human Soldier When Sicarian Infiltrator enters the battlefield

Set: XY: BREAKpoint Type: Supporter Rarity: Uncommon

Svella, Ice Shaper [Kaldheim] SWSH143 Engine of Ruin or anotherSet: Kaldheim Type: Legendary Snow Creature Troll Warrior Rarity: Uncommon Cost: {1}{R}{G} {3}, {T}: Create a colorless snow artifact token named Icy Manalith with "{T}: Add one mana of any color." {6}{R}{G}, {T}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.