Desperate Attacker

All the damage dice of attacks you make are reduced by one size category to a minimum size category of a d4 (Example, a d12 would become a d10 and a d4 would not change sizes). The damage dice of your attacks now explode,  when you roll the maximum number on any number of dice rolled for the damage of an attack,  record the current total damage. You then roll each die that rolled its maximum again and add the new rolls to the original recorded damage. If you roll the maximum number on any of those die again, you repeat this process of rolling and adding the rolled to the original recorded damage until none of the dice rolls its maximum number. When you roll extra damage from critically hitting you roll half as many extra dice rounded down, you remove the dice from lowest to highest when doing this. Effects and abilities that allow you to reroll die do not work on damage dice rolls being rolled again because they have exploded.

Back away Gizzly! You may think you have the advantage but attacks of pure desperation can be recklessly inefficient or dangerously destructive. let's not find out which is which.
~Synnyl The Kobold