Haven't seen anyone make these in a while, so i like to post my own.
I have no good knowledge of game balance and would also like to hear inputs from everyone else, also i have no background or design of this agent but i imagine this agent to be someone who can't die, feel free to imagine what they look like.

GHOUL / Duelist

Passive :

Ghoul’s tactical abilities shares the same resource that’s called SOUL points that goes up to 4 points. SOUL can be obtained by hitting an enemy with his signature ability or through 75 damage dealt while being in his ultimate. Ghoul starts off with 2 SOUL points that he can use freely.

Ghoul can also locate every corpse on the map.

Signature :

[SOUL SCRAPE] [1 free use] [2 kills]
INSTANTLY send out a clawing hand forward that goes through terrain, damaging the first enemy hit and stealing their SOUL. (i don't know the proper damage for this ability)

Tactical :

[DEATH SEEKER] [1] [25s / 15s on CRUSADE] 300 credits
INSTANTLY Reveal the position of damaged enemies in front of you after a short delay that can only be seen by you. Revealed enemies does not show up on the map and is represented with the Souls glowing in their heart, that gets brighter the lower their health. (Has no animation, and it also detects Yoru's decoy)

[LAMENT] [Up to 2] [No Cooldown] 200 credits each
INSTANTLY cast a shroud mark onto a terrain that activates after a short delay. Once activated, the mark would briefly form a shroud that deafens incoming sound.
(Basically a Jett smoke that's cast instead of thrown, it has the same range as Reyna's Leer and can only be placed on the ground and walls)

Ultimate :

[CRUSADE] [6 points]
After dying, Ghoul can revive himself on any corpse by casting CRUSADE. Making him enter a Blood lust state. (Self revive doesn't consume the corpse he spawns in, and his body would be removed from his original death location)

During this state, he gains a movement boost and full health with over heal but cannot be healed by other sources. For each 75 damage he deals during this state he gathers 1 SOUL that can be used for his abilities.

This state lasts for 30s and resets after each kill. If ghoul fails to score a kill during this state, he would die.
An ally needs to be alive to cast CRUSADE.