AP Nasus broken
What a ridiculous kit. He's meant to be a tanky late game damage dealer but if you go AP he explodes people with his Spirit Fire from the very beginning, doesn't run out of mana EVER once he has two doran's rings, and Spirit Fire has a huge range, huge radius, does heavy initial burst damage AND has a dot as well as armor shred. Now, with normal builds this isn't a problem as his Spirit Fire never really does any damage. However, when he goes AP this ability is completely out of line. He should not be able to chunk you for 1/4 of your health in mid lane on an ability you basically can't dodge.
Riot, you've gotta nerf the AP ratio, the size of the spell, SOMETHING. This shit is absurd.