Most "board sweepers," cards that wipe away most of what's on the battlefield allowing players to recover if they're behind, tend to go in rare
Caesar, Legions Emperor Universes Beyond: Fallout While not quite reaching the heights established by fellow Fallout Commander The Wise Mothman, Caesar, Legions Emperor is a close runner-up, playing aggressively with a token army that can be sacrificed when the time is right
Since its effect has no specific way to mitigate your opponents using its gifted resources against you, youll have to constantly justify to them why they ought not attack you
Nuka-Cola Vending Machine is a great way to easily generate Food tokens, which can then be turned into Treasure tokens to help ramp you
But anyways, heres my comprehensive guide to the various card types