Goofy tribe. There's a surprisingly large number of Chimeras (21 as of VOW).
• Tribal stuff (Door of Destinies, etc.)
• Some copy creatures instants/sorceries (for the artifact Chimeras that sac, and the three Chimeras that care about instants/sorceries)
• Some proliferate (for the artifact Chimeras that sac for +2/+2 counters)
• Some enchantments with ETB effects (two of the Chimeras bounce an enchantment per turn)
• I could use Gnostro as the general, as it is a legendary Chimera, but I would lose green, which has some good Chimeras in it. The general (why is non-standard) isn't particularly important and can be replaced.
Click here for a text version of this decklist
Click here for my EDH Commander decks