If the above is a combo, then what about this: I know it is slower, but if the effect of Channel and Fireball is greater than the sum of its parts, then why isnt it the same deal with Channel and Dragon Engine
Given my experience, I think this pick is between Lord of Extinction and Satyr Wayfinder: payoff or enabler
Using blink classics like Conjurers Closet, or even Tarkir: Dragonstorms Mardu Siegebreaker, you can rob multiple creatures of abilities at a time
The simple clause for activating its ability, "Sacrifice a Human," seems like one of those things to give many players pause
Boy, its a good Commander card though
I chose this mana base for its consistency and utility with a few other lands like Cascading Cataracts that could be included if you want