Spryzen, the Inevitable

Partner with Shu, the Unbreakable
Indestructible, Hexproof, Trample
Whenever a +1 +1 counter is put on this creature,
When this creature attacks, draw 5 cards.
If you would put a +1 +1 counter on a creature, instead put twice that many counters on it instead.
You have no maximum hand size.
Whenever you draw a card, you may sacrifice a creature, if you do, put X +1 +1 counters on target creature where X is its power.
You lose 2 life