My most favorite creature type has for some reason always been Nomad. 
Whether it was because of Avalanche riders in my old style ponza deck or some 
other odd reason.
Here are some of my most favorite Nomads of Odyssey...
They are in no particular order.

#1
Mystic Crusader
Because it has pro black/red and with threshold gets +1/+1 and flying this is 
a good efficient card as a 2/1 for 1WW. Once again this opens the door to 
post Odyssey U/W, W/G. 
#2
Mystic Penitent
Without tapping to attack this card with threshold can really dominate, a 2/2 
flyer that can attack or block in back to back turns is impresive and 
worthwhile.
#3
Mystic Visionary
1W for a 2/1 isn't bad, with threshold it is great, all of these mystics need 
threshold to be great but they are all good by themselves.
#4
Nomad Decoy
I love tappers
#5
Pianna, Nomad Captain
Behold the king of the nomads, great ability and pretty mana efficient.

Nomads forever!