Lethal Vapors [Scourge] Role Playing Games Whenever you cast a creature

Whenever you cast a creature spell with mana value 5 or greater

Wreckage from the Phyrexian Invasion provided the rats with a seemingly unlimited number of breeding grounds

the Unredeemed

Set: Invasion Type: Creature — Elf Rarity: Rare Cost: {1}{G}{G} Other Elf creatures get +1/+1 and have forestwalk

Set: San Diego Comic-Con 2016 Type: Legendary Planeswalker — Nissa Rarity: Mythic Cost: {1}{G}{G} +1: Create a 0/1 green Plant creature token

Lethal Vapors [Scourge] Role Playing Games Whenever you cast a creatureSet: Scourge Type: Enchantment Rarity: Rare Cost: {2}{B}{B} Whenever a creature enters the battlefield, destroy it. {0}: Destroy Lethal Vapors. You skip your next turn. Any player may activate this ability. The vapors infiltrate every crevice, poison every lung, and snuff out every life.