My playgroup has been testing this card over Boros Charm, and the takeaway is that this card is at it's best in a white deck plashing a bit red, similarly (or would it be oppositely?) to how Boros Charm is at its best in red decks that splash a bit of white. I don't love the card, but I think I like it better than charm (and I really like charm!). I haven't tested Aurelia at all, but I'm guessing that angel is just a bit too slow compared to a creature like this.
[GRN][CUBE] Tajic, Legion's Edge