Talk:Deathfire Grasp/@comment-151.82.58.239-20110922122433/@comment-4680800-20111227101313

^You guys have the same formula basically, a bit more explanation would make it clearer though...

100 Magic DMG incoming with 50 MR > 50/(100+50) = 0.333... (multiplied to damage to get the amount reduced) You only take 66,6... dmg Or (100*50)/(100+50)=33.333 (Pctage reduced) You only take 66,6... dmg

More info : http://leagueoflegends.wikia.com/wiki/Magic_Resist