Blood Infection

You may use a special attack of extreme power. However, after you do so, you cannot distinguish between living objects for 1d4 hours, and must move towards and attack the nearest living creature, excluding non-sapient plants. In order to stop, you must make a Wisdom save with a DC equal to your infection level. This can be used once per short rest.

Every day, you must make a Constitution save. If the roll is less than 7, your infection increases by 1 level. If the roll is more than 13, your infection drops by 1 level.

When you gain this feat, you roll a d20 to determine your infection level. If your infection level reaches 20, you are permanently in the rage mode until you lose 1 infection level. If your infection level reaches 0, you keep the boon and are no longer bound by the condition.

Spells like greater restoration or heal reduce the infection level by their spell level. A medicine check with a DC equal to the infection level can reduce it by 2.