Phyrexian Negator [Duel Decks: Phyrexia vs. the Coalition] Fungus Beast Set: Shadows over Innistrad Type:

Set: Shadows over Innistrad Type: Enchantment Rarity: Rare Cost: {1}{G} Creatures you control have "{T}: Add one mana of any color

The bigger they are

Set: Rivals of Ixalan Prerelease Promos Type: Creature — Phoenix Rarity: Mythic Cost: {2}{R}{R} Flying

you may discard a land card instead

When Worldspine Wurm is put into a graveyard from anywhere

Phyrexian Negator [Duel Decks: Phyrexia vs. the Coalition] Fungus Beast Set: Shadows over Innistrad Type:Set: Duel Decks: Phyrexia vs. the Coalition Type: Creature Phyrexian Horror Rarity: Mythic Cost: {2}{B} Trample Whenever Phyrexian Negator is dealt damage, sacrifice that many permanents. They exist to cease.