^Get Charge and abuse it. It can be used at 0 MP, just don't use it over and over if it fails, it wastes time and you'll be getting mauled.

Level up. I haven't gotten far into the game yet (I'm not even at Raithwall's Tomb yet), but yeah. Make sure your Gambits are set accordingly (if you have Cura, which I think you should, spam it on the skeletons but try not to hit the bunny), etc. Try to have an attacker (Bunny), an attacker for the skeletons (with an foe = undead/Cura or Raise gambit), and someone to heal and buff.