Gray Merchant of Asphodel [Mystery Booster] Lizard Egg and that player can't activate

and that player can't activate abilities that aren't mana abilities

It crushes all underfoot

Set: Deckmasters Type: Instant Rarity: Uncommon Cost: {R} Death Spark deals 1 damage to any target

create a 2/2 green Lizard creature token

Pyromatics deals 1 damage to any target

Gray Merchant of Asphodel [Mystery Booster] Lizard Egg and that player can't activateSet: Mystery Booster Type: Creature Zombie Rarity: Common Cost: {3}{B}{B} When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)