is there a ap champion that can kill tanks?

(well he deals magic damage)

All the DPS oriented mages are pretty decent tank killers. This is because more of magic damage is burst than sustained so most people stack health and a little mr to deal with magic damage (partially because mr itemization for tanks doesn't have a crazy amount of options). So any pick that is a DPS mage or a battle mage will do great. Ex. (basically a marksman that does magic damage) and anyone with synergy with

Brand seems pretty effective. As does Cass.

People saying Malz are high af, he hasn't been a tank killer since his rework.

Some AP champions used to kill tanks before the introduction of .