Can someone tell me about Machaka?

[Jarkko]

Bane Fire (excellent against giant type targets, sadly the AI likes to target the spell on things like Dragonflies, Imps and such) and Magma Eruption (nice against massed low- or un-armoured targets, and thus excellent against those very feared human wave militia attacks, but totally useless against heavy armoured troops or Fog Warriors) are mid-game spells. I still believe midgame is where Machaka is strong, in the end-game it has very few options.