You either need abuses for the Rack such as Land Tax or you need to be pretty desperate for things that put cards back in your library, presumably because you didn't get any of the good cheap blue effects
For four mana, you get a 4/4 that allows you to pay three mana to blink another Creature you control
Legendary Creature - Wizard Avatar Gollum, Scheming Guide Whenever Gollum attacks, look at the top two cards of your library, put them back in any order, then choose land or nonland
If he lives up to the start of The Heart of Darkness , Danforth would explain the nature of the City of the Elder Things, and its lower levels
Its that the card forms a pair with another Ponyta card from the same set
The set contains plenty of powerful cards for the Commander format, but very few were able to break the Commander barrier into constructed formats