If Redcap Gutter-Dweller leaves the battlefield after its last ability has triggered, you can still sacrifice a creature and exile the top card of your library, even though you won't put a +1/+1 counter on Redcap Gutter-Dweller
Even without going infinite, being able to untap every turn with Murkfiend Liege, Drumbellower, White Plume Adventurer or Quest for Renewal generates a ton of advantage in multiplayer Commander
I love the Affinity mechanic, and Affinity for Equipment is a great way to balance it
Sythis, Harvests Hand The ultimate enchantress card on rate, Sythis, Harvest's Hand is the only cEDH viable enchantment commander because you cant beat its efficiency
This expansion introduces Pokemon LV.X, which are leveled-up, more powerful Pokemon
Table-Wide One-Shot Combo This combo is one of the easiest to assemble and the most powerful