Based on the graphics and the effct of the speel. . id say Rylai, Enigma, the Panderen, Faceless void, obsidian, leviathan. . wel u get the picture

i actually didnt mean the graphics cuz the graphics in dota s*cks.. just the impact..

Necro's, ogre magi's, lina's, and of cource lich's. They're all great