Basically, we're okay with a few cards that put +1/+1 counters on creatures but we tend to avoid more complicated versions (such as 0/0 creatures that come into play with +1/+1 counters) at common, although we're more willing to do something like that if there are a number of cards dedicated to a certain theme ( Darksteel 's modular, I'm looking at you)
The card is extremely strong and banned in Legacy and restricted in Vintage for a reason
Unfortunately, he doesn't have many answers to control or removal effects, and the low-cost nature of the cards in his deck makes him vulnerable to some specific strategies
Jace Reawakened sees the previously Phyrexianed hero becoming a two-mana blue planeswalker who cant be cast until turn four of the game
Tri-color mythic rare dragon Nicol Bolas, The Ravager, a flying 4/4 that can be resurrected, is another $25-or-so beast, and Stoneforge Mystic, a Worldwake rare who allows you to cheaply play equipment from your hand, standing at $40
The famous weakness of blue is that enemy creatures cannot be destroyed completely
