Etherium-Horn Sorcerer [Commander 2016] OP01-029 Set: Modern Horizons 2 Type:

Set: Modern Horizons 2 Type: Creature — Human Druid Rarity: Uncommon Cost: {1}{G}{G} When Yavimaya Elder dies

where X is 2 plus the number of cards banished to play this

converting its resources into biomass that can be extracted by the Hive Fleet

You may cast spells from the top of your library by removing a counter from a creature you control in addition to paying their other costs

If it shares a card type with that permanent

Etherium-Horn Sorcerer [Commander 2016] OP01-029 Set: Modern Horizons 2 Type:Set: Commander 2016 Type: Artifact Creature Minotaur Wizard Rarity: Rare Cost: {4}{U}{R} {1}{U}{R}: Return Etherium Horn Sorcerer to its owner's hand. Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)