You need to keep your hand stacked with lands in order to enable retrace, but you don't want to give up land drops either, an issue that's solved by exploring a bunch with Hakbal
Sandstone Oracle If artifact, flying, or sphinx are buzzwords that matter for your casual Commander deck, maybe you can get something out of Sandstone Oracle
Its also the priciest reprint in the set
Because of Feeds vulnerability to Crack and Command, its important to only use Feed in a deck that can guarantee it resolves
Creature - Goblin Shaman Color tag templates(None) Dragonmaster Outcast At the beginning of your upkeep, if you control six or more lands, create a 5/5 red Dragon creature token with flying
Im all in for what could be the best of the Un- sets thus far