Lazav, the Multifarious [The List] XY35 You can only use this

You can only use this effect of "Revendread Slayer" once per turn

Each Battle Kit 3 Contains:

the Eliterate colony forswore the taking of life

inflict 300 damage to your opponent for each monster they control

Lazav, the Multifarious [The List] XY35 You can only use thisSet: The List Type: Legendary Creature Shapeshifter Rarity: Mythic Cost: {U}{B} When Lazav, the Multifarious enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {X}: Lazav, the Multifarious becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability.