Branced Tree Of Pain Feat 18Exemplar Ikon Source War of Immortals pg. 41imbued into a weapon ikon that deals piercing or slashing damage
The blade of your ikon takes one or more notches, capable of dealing mortal pain to your foes.
Immanence When you Strike with the ikon, you critically succeed if you roll a 19 on the die as long as that result would be a success. This has no effect on a 19 if the result would be a failure.
Transcendence—Plant Thirty Barbs
[one-action] (death, transcendence) You snap off a fragment of your ikon within your opponent’s body, which threatens to burst into numerous barbs. Make a Strike with your ikon. If successful, barbs fill the target, dealing two die of weapon damage the first time the creature uses a move action on each of its turns; the barbs are made out of the same material as your weapon ikon and bypass resistances and such accordingly (for instance, a cold iron spear would create cold iron barbs). The barbs last for 1d4 rounds. If the target dies while the barbs are still in their body, the barbs burst forth in a forest of thorns covering the creature’s space, which are greater difficult terrain and deal piercing damage equal to half your level for each square that is moved into.
Traits
Ikon: An item with the ikon trait is a special item provided or created by an exemplar's divinity that is so tied to that exemplar that it can serve as a sacred vessel for their might. You gain three ikons at first level. Each ikon has a passive immanence ability and an activated transcendence ability. A feat with the ikon trait imbues one of your ikons with further capabilities. Whenever you gain a feat with the ikon trait, choose which of your ikons gains that ability; if you have multiple ikons that meet the feat's usage requirements, you can take the feat multiple times to apply its effects to another one of your ikons. These feats list what ikon they can be imbued into, and any number of them can be imbued into a single ikon.