I can't seem to beat rank X. I use a Liquid metal slime level 18.
Stats:hp93 mp233
attack 225
defence 410
agility 422
Wisdom 262
Moves: bang bomb slash Kamikazee

Ruin level 27
Stats hp 478 mp131
attack 554
defence 404
agility 72
wisdom 91
moves midheal buff zing reheal meditation

Wight king level 32

Stats hp361 mp441
attack 242
defence 369
agility 301
wisdom 544
moves fullheal buff kazing reheal meditation

I will NOT remove the ruin and the wight king but Will remove the liquid metal slime. Any suggestions?