I'm not sure if many EDH players noticed this go by in the cycle of killer dual color uncommons in Oath (including reflector mage, a golgari zombie who recovers 2 creatures to hand, stormchaser mage, and void grafter). Only 1 life? Sure. But, counterpoint: Pontiff of Blight (this also combos with Exquisite Blood but we won't go there). Karlov came out as a new twist on lifegain commanders: instances of lifegain over bulk life gain. Cliffhaven supports that direction dealing chip damage to your opponents through it. This card makes the seemingly friendlier Righteous Cause and such much more deadly to deal with, and it turns Horizon Chimera into Psychosis Crawler.













