Naveen will be an auto-include in any midrange or control Amber deck that includes a decent amount of songs, which at the moment are the only Amber decks seeing any real play
A great card to have handy is Grab Your Sword, which has the perfect cost of 5 and proves more useful in the early game than the equally strong Part of Your World
FYI, If you're planning out your commander decks early, it looks like Toph, Earthbending Master, and Wan Shi Tong are fan-favorites for Commander leaders
Any cards clipped in a Challenge can be returned to your hand if you manage to get Dr
The eyes of Sephiroth have Jenova cat-eye pupils and mako irises
Reckless Charge Reckless Charge may look like just another pump spell but it plays quite a bit differently, being both a sorcery and just so much higher of a rate than most pump spells