Fighting Spirit

When you reach half health this feat gives you a +10 modifier to all melee damage rolls, but causes disadvantage on all saving throws. When you reach a quarter health you get +5 to melee hits, but your ac is halved, and you have a -5 penalty to all checks and saves.

This only lasts for 1 minute and can only be used as many times as your proficiency modifier per day

This effect will also end if you do not hit anything or get hit before your next turn or are made unconscious.

When you are about to be knocked down or killed you may use your reaction to make an melee attack with +10 to hit and a +20 to damage

This can only be done once per day