Master of Death

: Target player gains control of target artifact, creature, or land you control.

At the beginning of your upkeep, if you have exactly 1 life, you win the game.

Enchant creature Enchanted creature gets +2/+2 and attacks each combat if able.

First strike, deathtouch This creature can only attack alone. Whenever this creature attacks a player and isn't blocked, that player's life total becomes 1. This creature assigns no combat damage this combat.