User blog comment:Telaruhn/Dolomitak, The Bone Shaman/@comment-41.132.77.122-20120304234104/@comment-4773210-20120305023210

Hmm... Morgana gains 30% spell vamp by level 13, which is the maximum she recieves from her passive. 25% is pretty close to that, but don't forget that Morgana's passive is spell vamp only. Also... 500 AP = 50% lifesteal and spell vamp = OP :P