mtg tarkir: dragonstorm card list Art 16: Equilibrium Adept Tarkir Dragonstorm Draft Guide -

The main drawback is that blue inherently has trouble dealing with resolved permanents

When Aerith Gainsborough dies, put X +1/+1 counters on each legendary creature you control, where X is the number of +1/+1 counters on Aerith Gainsborough

SWAN SONG / AN OFFER YOU CANT REFUSE Swan Song is a one mana counterspell, and thats enough to propel it to one of the most played cards in the format

Esper is not a color combination known for going wide with creatures, but Arna Kennerd, Skycaptain provides a compelling way for players to break the mold

7 Obstinate Baloth Many green decks are going to be playing Obstinate Baloth given the popularity of Liliana of the Veil

In terms of power level, I think it is somewhat playable enough