O-Kagachi, Vengeful Kami O-Kagachi, Vengeful Kami is your 5-color commander for spirits, and sometimes its a 5-color dragons commander, although the competition is pretty steep there
This can do two things really well: either turning all your 1/1 tokens into 5/5 dragons, or giving all of your creatures extra ETB triggers when you get rid of Day of the Dragons
Greater Auramancy gives your enchantments and enchanted creatures shroud, meaning they can't be targeted by spells or abilities, both those controlled by you and your opponents
Not only does this give you more play options by allowing more to happen at instant speed (upgrading Mantle of Webs to Sudden Spinnerets, for example), it lets you customize creatures like Grimdancer and Helica Glider to your needs by choosing their abilities as they enter the battlefield
If you want to be sure opponents cant rely on regeneration effects, Plague Wind is the wipe of choice
Oodles better with a sacrifice outlet, but still more than playable otherwise