Like most Magic: The Gathering cards, the value of One Ring to Rule Them All depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (The Lord of the Rings: Tales of Middle-earth)
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) As long as Aetherwing is still an artifact, its ability will count Aetherwing itself
You could use a similar skeleton with a few more sweepers or early interaction in place of Neoform and some creatures, and just take this as a skeleton for the manabase for a five-color control deck
Unmask One fundamental truth of Magic is that free spells are busted
This particular ability allows you to use another card with the same ability as an additional commander
It can be a good idea to keep this page open to review your options and figure out which work best together