Masochism reacts backwards with healing ( IE walking on lava to gain hp) the Maso'd unit will Lose damage , and lose ap ( reverse of the effect where u take dmg , get dmg and ap) as other units get helped ( unsure if specific to fire-eater/lava or healing ingeneral) ty
Agirgis1 said it a little bit better than I did. Keep in mind though that dmg doesn't mean loss of health it's the units actual base damage that is maso'd. Also it's any kind of healing done, it's not just fire eater. http://forums.poxnora.com/index.php?threads/fire-eater-and-massochism.17365/