Necropotence Necropotence is the among pinnacle of black card draw spells, allowing you to pay 1 life, repeatedly, to exile the top card of your library and put that card into your hand at the beginning of your next end step
If this face-up card on the field would be destroyed by a card effect, you can detach 1 Xyz Material from a monster you control instead
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Getting a 2/1 with menace and a 2/2 for 4 mana is a good deal, and Endure's flexibility can give you a 4/3 Menace instead when that's what you need
Creature - Vampire Color tag templates(None) Butcher Ghoul Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.) Creature - Zombie Color tag templates(None) Doom Whisperer Flying, trample Pay 2 life: Surveil 2
The answer is actually very different from the one above