I think that, in multiplayer, Oath of Druids could actually be a really fun card if the deck of the person using it isn't based on using it to cheat Emrakul or other stuff like that onto the battlefield. What's cool about this card is that a player can get a creature out of Oath of Druids even if only one player has more creatures than them. This card would turn the game pretty crazy (though all that is mainly for casual multiplayer where decks don't have to be min-maxed).