Lonis, Cryptozoologist, One of Magic's the best investigate cards, can be a wonderful clue commander
(A creature with menace cant be blocked except by two or more creatures.) Illustrated by Simon Dominic Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Not Legal Brawl Legal Legacy Not Legal Comp
x1 Pre Made Deck (50 Cards)
You can either use individual planar decks or a shared planar deck
Virtually every deck needs to play lands to get going, but if you drop an early Cemetery Gatekeeper and exile a land (which there should be abundance of in eternal formats), then is your opponent forced into not playing lands until they find an answer
Just look at the capability with Magistrate's Scepter, Lux Cannon, and Darksteel Reactor onboard the spacecraft commander