i did use angel titan and meteor blast to kill that stage 16 hard its slow to kill but it does work (it take something 1h) and its hp bar is there little higher where is mana and others
it quite hard kill epic yeti when its get too close to ur castle or even half way the map it do dmg at castle when it strike. i got all stats fully capped now but cant kill it yet.
 "Epic War 4"){kind=icon}