Derevi, Empyrial Tactician While Derevi, Empyrial Tactician is best known in cEDH circles for its Stax builds (and as someone who has had their resources completely choked out multiple times this way, its reputation is well deserved ), the ability to tap or untap a permanent when it enters the battlefield also offers a lot of opportunities for abuse
Its stronger, however, because of two things: The infamous combination of Strip Mine and Crucible of Worlds to get rid of all of your opponents lands and powerful synergy with cards like Oracle of Mul Daya to play tons of lands
You can say its a mix of an enabler and a payoff for mounts/vehicles
Yes, an opponent gains control of the monkeys paw
Decree of Pain [Wizard deck]: It's a little late, and the wizard deck could use some counterspells to stall gameplay, but I will take it