Ilharg, the Raze-Boar (Borderless) [Secret Lair Drop Series] Elder Giant −X: Exile each permanent with

−X: Exile each permanent with mana value X or less that's one or more colors

R&D under mental domination of alien brain in jar

except it's an enchantment in addition to its other types

Set: Ixalan Prerelease Promos Type: Land Rarity: Rare Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island

you'll understand why

Ilharg, the Raze-Boar (Borderless) [Secret Lair Drop Series] Elder Giant −X: Exile each permanent withSet: Secret Lair Drop Series Type: Legendary Creature Boar God Rarity: Mythic Cost: {3}{R}{R} Trample Whenever Ilharg, the Raze Boar attacks, you may put a creature card from your hand onto the battlefield tapped and attacking. Return that creature to your hand at the beginning of the next end step. When Ilharg, the Raze Boar dies or is put into exile from the battlefield, you may put it into its owner's library third from the top.