I am not opposed if and only if it is done for the purpose of eating (and even so I have standards to make sure death is as painless as possible). Have you ever seen a lion eat something in clear uncut footage? It's more cruel than anything in this video and nothing in the world will ever stop them from doing that. You have to accept that even if you do stop it, animals all over the world are still brutally treated even if we're not the ones doing it.
You mean Thrall the Warchief? I believe the closest you can get to him in DotA is Chen the Holy Knight (all his spells are from so many different heroes it's almost impossible to find a match that is close).