It makes ZERO sense to include. His ability to blind the monsters sense of smell is crushed by the fact that the monster will simply follow the green trail of death back to him…
It would not be considered op because Slim’s very existence is his limitation. The fact that he has to ENGAGE in combat to heal, will always put him in the monster’s danger zone, unlike the other medics who are recommended to stay away from the font lines when possible.
My other gripe is the use of spore clouds. Shouldn’t they also be able hide the scent of whatever’s in them even when the monster’s no there?
It’s not hard for monsters to quickly traverse quickly upward out of the cloud to get a good sense of hunter location for a second, then quickly barrel back down to my target.