Boros already has this sort of effect attached to a legendary creature you can run in the command zone with Zirda, the Dawnwaker, but its nice to get another one in Gruul with Agatha of the Vile Cauldron
That's all we have for mechanics in Final Fantasy
Threats Aggro and aggressive-leaning midrange decks want to spend all their mana every turn applying pressure
Consult the Star Charts When I wrote my initial review of EoE, I noted it as one of the top cards of the set and I now think its the best cube card of the set
Its a fine novelty in the $5 range, but I cant see it breaking through in a real deck unless WotC prints, like, Super Emrakul or Fat Griselbrand or something
Even tutor effects can be used to cheat essential creatures into play, such as Avacyn, Angel of Hope