Peeking at the top of your library and casting Merfolk from there is a nice effect, and tacking on to create a 1/1 Merfolk is a tasty boon
Once you hit delirium, Wildfire Wickerfolk is a 4/3 with trample, which isnt bad for a 2-drop
I consider this the closest thing to an auto-include for casual Commander among all of the graveyard hate cards on my list
-5: You get an emblem that says "Whenever you cast a creature spell with infect, target player gets a poison counter." The reason I like these is because the +1 is like Carrion Call , the -2 is a Corpse Cur effect, and the -5 is an emblem of Hand of the Praetors
It costs 7, and also equips for 7 but gives +7/+7 to the creature barring it, who when it attacks can destroy target creature an opponent controls
Now, part of what makes social Commander fun is exactly that prospect: a game being turned on its head at the last moment