Hellefer Zephyrum

First Strike.
Whenever Hellefer Zephyrum dies, Create a 1/1
black Crow creature token with flying and "At the
beginning of your upkeep sacrifice this creature
and return target card named Hellefer Zephyrum
from your graveyard to the battlefield. It gains
Haste until the end of turn."
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The moment you can't stand it anymore is when
you should get up and not give up.