Planar Collapse [The List] Phyrexian Sphinx Set: March of the Machine

Set: March of the Machine Promos Type: Enchantment Rarity: Rare Cost: {G}{G}{G} Whenever a creature enters the battlefield under your control

Set: Dominaria Remastered Type: Creature — Bird Rarity: Uncommon Cost: {2}{W}{U} Flying

except its name is Mishra's Warform and it's a 4/4 Construct artifact creature in addition to its other types

Urborg Haunt deals combat damage to a player

When this creature dies

Planar Collapse [The List] Phyrexian Sphinx Set: March of the MachineSet: The List Type: Enchantment Rarity: Rare Cost: {1}{W} At the beginning of your upkeep, if there are four or more creatures on the battlefield, sacrifice Planar Collapse and destroy all creatures. They can't be regenerated. With heavy heart, Urza doused one world's light to rekindle another's.