Biollante, Forma di Bestia Pianta - Nethroi, Apex of Death #380 NM Ikoria Magic MTG
Set Ikoria: Lair of Behemoths. Card Text Mutate {4}{G/W}{B}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.).