Mark of Elibataph's Hunter

You gain what little is left of the dead serpent Elibataph. Your mark of a hunter becomes deeper the more dangerous the hunts you take. 

When you gain this feat you gain the following properties and suffer the detriment.

• You choose one weapon or your unarmed attack after a long rest, this weapon gains magical properties, and a +1 to attack and damage rolls.

After you gain this feat, you gain more properties after killing a creature based on the CR.

CR 5 or higher. Choose one creature type, when combat happens, you gain the effects of hunters mark spell automatically on enemies of that creature type.

CR 8 or higher. You can choose two creature types.

CR 11 or higher. The damage of hunters mark becomes a d8. You also gain one more creature type to use hunters mark.

CR 14 or higher. If you attack a creature with hunters mark, your crit chance is added by 1, this can stack. You also gain one more creature type to use hunters mark.

CR 17 or higher. You cannot be critted by a creature with hunters mark. You also gain one more creature type to use hunters mark.

CR 20 or higher. You gain all creature types to use hunters mark.