For turns combos, one option is Mishra, Eminent One, Gonti's Aether Heart, and Panharmonicon
2008-10-01 If a creature returned to the battlefield with unearth would leave the battlefield for any reason, its exiled instead unless the spell or ability thats causing the creature to leave the battlefield is actually trying to exile it
All of this to say: Dracogenesis will likely be worth a mint for a while due to casual Commander hype, but it wont really be necessary for a serious deck
Determining what excess damage would be dealt to a creature is similar to how combat damage from a creature with trample is handled
After seeing popular Eldrazi creatures top the price list from previous sets, this doesn't come as much of a surprise
Some of these still see Eternal play as light disruptive spells with meaningful bodies attached to them, and Fae of Wishes in particular is a sign of a combo deck