It is not fired off very often, mostly because people go to all lengths to stop the ultimate happening but also because he only has a +1 to grow, starts at a measly 3 loyalty and often needs to fire off a couple of -2 effects en route so as to remain alive
The prime example of this is Lingering Souls, which can't be reliably discarded, can't be reliably killed, clogs up the board, threatens Lily, can swing for up to 4 damage, etc
This card, however, is NUTS in EDH
If that weren't enough of a reason to grab this card during draft, Asinine Antics can even be cast with flash if its controller pays an additional two colorless mana
Squall, SeeD Mercenary Another one that isn't the most powerful (you'll see this observation a lot on this list), but his design is undoubtedly unique and fun