With Yusei's recommended parts in tow, the player returns to Crash Town
I've long maintained that stealing a creature from their side of the board and using it as our own is a two-point swing in our favor in the zero-sum game called "having creatures" and drawing a card to boot is just gravy
Apart from mutate cards to trigger that ability, I guess you could use Stuffy Doll and Brash Taunter, or fill your deck with cards that grant abilities to your commander like backgrounds and the legendary familiars (Kediss, Falthis, et al)
Auctioneers can provide a successful bidder with an in-house packing & shipping quote or with a list of shippers if preferred
Yawgmoth, Thran Physician [Sacrifice Engine, Removal & Card Draw] Yawgmoth, Thran Physician turns creatures into cards, removal, and combo fuel
If The Indomitable is countered or dies after being cast from your graveyard, it returns to the graveyard