This ability is quite similar to that of the Gruul commander, Wulfgar of Icewind Dale
No more and no less
So for your 3-mana investment, you gain an evasive beater, the chance to deal some damage to folks, and roughly a fifty-fifty chance of drawing an extra card each of your upkeeps
Oh, and our plant friend here has Ward 2, making it a hard weed to get rid of
As it happens, I actually find it hard to choose only ten, as I think even adding all the cards on his Top 10 and my Top 10 lists (which, outside of disagreeing about ranking, include five different cards), I still dont think weve covered all the playable Modern cards in the set
Another note Ill make here is that most of the time when you create a token that is a copy of something that isnt a token, or cast a copied spell that would become a permanent, or copy a permanent with a cloning effect, it retains its mana value of the thing it is copying when it enters