'a rotcap feeder' in Hills of Shade is summoning pets that appear to be proccing Sonic Blast (~4k dmg + 4 sec stun, according to ZAM), which seems kinda gnarly for the zone difficulty, or at least compared to surrounding sporali mobs. I dunno if that proc is intentional, but in addition to being powerful, it's also appears to be bugged -- I'm not seeing any spell damage from the proc in my combat spam. Checking my logs, I found one clear instance in which I have full health, I'm hit by some melee and 1 Sonic Blast, and then I'm fully healed again. There's a 2.8k dmg discrepancy between the melee dmg I received and the heal that topped off my health, leading me to conclude there's unreported damage associated with Sonic Blast.
Verified. It looks like the Sporalize swarm pets were a copy of a_vampire_bat from Solteris Raid 7. They have the same scripts and spell proc of those bats... And probably shouldn't.
