It allows you to pay for a card in advance, but you wont get anything extra out of it
You can space the cards out to get pretty much as many combats as you want, and then go for an infinite combat combo with these two cards: [card]Aggravated Assault[/card] allows us to pay 3RR in order to take an additional Combat Phase, and [Card]Sword of Feast and Famine[/card] untaps all of your lands every time the equipped creature deals combat damage
Two mana for three damage at instant speed is always good enough, and this version even comes with some sweet new art to enjoy
You can mutate onto your commander Otrimi, the Ever-Playful is a dedicated mutate commander which has the mutate keyword
Creatures need to be really dangerous these days if they arent going to draw cards or disrupt the opponent, and Mossborn Hydra is an example of that kind of creature
As I explained above, I had played around with the idea of a flip card during Unglued 2 , so I was entertained by trying to make the idea work in real Magic