Originally Posted by Iroco
Thanks for the feedback!
Is it just anyone with a stun, gap-closing, or slowing ability?
those champs are just generally good duo laners, ryze specifically needs somebody who can do a good deal of burst during rune prison if he's gonna get any kills in lane, and probably someone kind of tanky to make sure he doesn't get dove.
For example, amumu has a gap closer and a stun, but would not work well because the lane wouldn't have enough damage to kill anyone easily. Nasus really has neither, since wither isn't that great in the lane phase because people usually aren't overextended enough for the slow to increase and for it to be useful, but despite that, he's still great with ryze because rune prison allows him to put out a lot of damage with E and Q that he otherwise wouldn't be able to pull off.
EDIT: that part about nasus wither is probably controversial so ima clarify. Wither doesn't immediately slow enough to allow you to put out very much damage, and when its slow increases, the enemy champ is already under their tower or their lanemate has CC'd you or something while you were chasing the withered champ. Wither is more a means to get your lanemate to stun the enemy champ so you can THEN do damage. The same logic applies to most slows, other than Tryndamere's mocking shout, Nunu's ice balls, and a few others when leveled.