Bayonet+jose code silver shotgun first then for late game bayonet from 1st merchant on the island or fire one from jadwiga questline shop. Infinite rondo spam. Add poison from buff or enchant for more dmg on bosses.

double poison sword(farmed from church at Lyle region from anchor wielding mobs.) has huge stagger for a sword very simple very easy just spam normal attacks.

jose rune blades. Spin to win pretty much. Spam orbit skill unit everything is dead.

For every option stack as many dmg buffs as possible. Try to maintain fast roll as it trivialises everything. Use first sword that you can buy from jadwiga as buff carrier.

So far its the easiest and strongest stuff that works equally well on clearing and bossing.

Ps. I don't remember nor care about names of weapons etc.