Khans of Tarkir was released on 09/26/14
Not very powerful per se, but it could make for a nice combo with MTG 's Hare Apparent with those rabbit tokens
Green-White +1/+1 Counters Just because a creature is small doesn't mean it will stay that way
Im going to take some creative license, and reference the famous quote by United States Supreme Court Justice Potter Stewart: I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description [HP/Damaged cards], and perhaps I could never succeed in intelligibly doing so
* Ydwen Efreet (Arabian Nights) - Richard Garfield was best man when "Mijae" married "Ydwen"-- that is, his friend "Jamie" married "Wendy." Card illustrated by Drew Tucker
Despite the vulnerability of artifact lands you should always try and play at least one, often more, if you have the Trinket Mage