Hungry Hungry Heifer [Unglued] SPA Caballero del Relicario if you guessed correctly for

if you guessed correctly for a card named Spire Phantasm

When Keening Banshee enters the battlefield

Tap X untapped artifacts you control: Look at the top X cards of your library

Sacrifice Gangrenous Zombies: Gangrenous Zombies deals 1 damage to each creature and each player

Set: Saviors of Kamigawa Type: Instant — Arcane Rarity: Common Cost: {2}{R} Sweep — Return any number of Mountains you control to their owner's hand

Hungry Hungry Heifer [Unglued] SPA Caballero del Relicario if you guessed correctly forSet: Unglued Type: Creature Cow Uncommon Cost: {2}{G} At the beginning of your upkeep, you may remove a counter from a permanent you control. If you don't, sacrifice Hungry Hungry Heifer. Mooo.