Elesh's End Game

As an additional cost to cast the spell,
exile half your library rounded down.
Trample, Protection from everything, Toxic 2
Whenever Elesh's End Game gives an opponent a poison counter, choose one:
-Discard your hand then draw 7 cards.
- Shuffle your graveyard into your library.
-You gain X life, where X is the number of
poison counters each opponent has times three.