Wizards of the Coast doesn't put an MSRP on total boxes, so prices on these may vary from store to store
If your Commander is low cost and likes to attack a lot, like Giada or Adeline, then Tome of Legends should draw you a lot of cards each game
At the beginning of combat on your turn, you can give a different creature +X/+X, where X is that creature's power
As you increase your faerie count this gets better and better as a counterspell but the card should not really be included in you counter magic as a mystic snake would
Until end of turn, you may cast that card without paying its mana cost
The biggest win is definitely Ancient GreenwardenAncient Greenwarden, but were also happy with Oracle of Mul DayaOracle of Mul Daya, Ramunap ExcavatorRamunap Excavator, and Scute SwarmScute Swarm