You may summon a zombie at will. It follows simple orders to move and attack creatures. However, after you do so, you take 4d6 necrotic damage. If this drops you to below half health, you immediately fall unconscious. If you reach 0 hit points, you die immediately and become a zombie. In order to prevent damage, you must make an Intelligence save with a DC equal to your infection level. This can be used 4 times per long 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.