Limit Break

Description
Limit Breaks are a way for a character to push past their natural limits, at a cost, and getting resources back to continue a fight. In general, you sacrifice hit dice, take damage, and regain some ability you've already expended.

Spell Casters

 * After exhausting all spell slots, you can roll any number of hit dice and regain a number of slots equal to the number of dice you rolled but none can be above 5th level.
 * Example: If you expend six hit dice, you couldn't regain a 6th level spell, but you could regain two 5th level spells, two 4th level spells, and two 3rd level spells. Or one 5th level spell and four 1st level spells.


 * Warlocks must expend hit dice equal to their current spell level

Martial Classes

 * Regaining 1 rage costs the number of hit dice equal to the total amount of rages
 * Example: if the barbarian has three rages available at the beginning of the day, it costs three hit dice to regain a rage. The damage from the hit dice cannot be halved in any way.
 * Any ability that grants extra attacks costs two hit dice per attack
 * Example: regaining an action surge costs two hit dice dice up to level 5. After 5th level, the action surge gives two attacks, and so would cost four hit dice.