Just had that shitty fight.
1st attempt: Party is at level 15. The gory bull gets to go right after being summoned and deals 59% of the max health of my fighter in two attacks in the first round. Armor was around 224.
2nd attempt: Against one of the mages that bull deals 493 damage in one attack. That's 81%!
The boars are immune to knockdown and have a fucking ranged attack. So first round the mage is dead. She was also the healer.
I am done with this game. I am not having fun at all because of the horrible "boss gets to go first and summons more creatures than you have members in your party, oh and he of course has ridiculous health and damage too and the rewards are shit too". EVERY SINGLE FUCKING TIME!!