Hoovenstire, the Messenger

Trample, Hexproof
When you cast a spell, you may make a copy of that spell by paying {2}. If you do, you may put a +1/+1 on Hoovenstire, the Messenger.
If Hoovenstire, the Messenger leaves the battlefield, you may draw X cards for X is how many +1/+1 counters on it.