Human - Champions and allies designated as humans gain bonuses or penalties based on other card's special powers.
Most of your creatures are quite costly to cast out right , with only five of the 21 costing two mana, and the most expensive costing 12 in total, although this cost can be reduced
Then once a player decides to play Kroxa from their graveyard using the escape mechanic, they are treated to this trigger again, with the added benefit of a 6/6 creature
As far as Standard is concerned, it's the best graveyard-disruption spell we've had since Tormod's Crypt was printed in the soon-to-be-returning Core sets, and it's strong enough that it actually serves the safety valve role quite well (a role other recent graveyard hate spells like Watchers of the Dead haven't been able to fulfill)
3/4 Anorith/Armaldo - I just think that this could help against Sableye, maybe it's just me