Dicey Dungeons

Recommend doing this early in the game when the enemies are weak.
Starting with warrior dice, save your limit break at the end of one battle, then start a fight with a weak enemy (I think I did it on a level 2)
From the tutorial you should have sword and battleaxe. use rerolls or dice changing eqipment such as bump to get the ideal dice. Use limit break with battle axe, with a 4, you can do 16 damage, and you can get up to 6 from sword for a total of 22. A low level enemy will be near death at this point, use any other damage dealing equipment to finish the enemy off

EDIT: since playing more, I have encountered some really weak level 1 enemies. WHne playing with the thief, I had an enemy with 7hp and rolled well enough to kill him first turn in my first encounter of the run