Its a perfect mana fixer that rewards you for casting creatures, but it doesnt require you to for some unholy reason
The text cant cast spells on your turn is strong, and that shuts down interaction, counterspells, flash spells, and more
Createrhoof gives all your creatures trample when it comes into play, which is pretty good on its own, but also gives them all +X/+X, where X is the number of creatures you control
It doesn't matter what it is
otherwise, you could be dead on your opponents turn four to a hasty Muxus or a combination of Goblin Chieftains and early threats
1 Virtue of Persistence Virtue of Persistence promises to be incredibly powerful not just in booster draft, but also the Commander format, where slow pacing and persistent value are common