Apex Altisaur [Commander 2019] Explorers of Ixalan it lives by one rule:

it lives by one rule: if there's no room to grow

spells your opponents cast cost {1} more to cast and abilities your opponents activate cost {1} more to activate unless they're mana abilities

Set: Urza's Saga Type: Creature — Treefolk Rarity: Uncommon Cost: {1}{G}{G} Trample

{1}{U}: Switch Phantasmal Fiend's power and toughness until end of turn

Apex Altisaur [Commander 2019] Explorers of Ixalan it lives by one rule:Set: Commander 2019 Type: Creature Dinosaur Rarity: Rare Cost: {7}{G}{G} When Apex Altisaur enters the battlefield, it fights up to one target creature you don't control. Enrage Whenever Apex Altisaur is dealt damage, it fights up to one target creature you don't control. It brings belligerence to new heights.