Nasty mob that casts. Almost got killed by one, as a lvl65 druid.
Planned on the dot rot method, before i knew it could cast. - "body pelted with spores - 558 dmg" - "Drains 330dmg" It gets Insidious Retrogression to stick, so i can't reapply my regen. - next, wallop! 600 dmg blast of Venom.
Thankfully I prepared Gate before leaving home, and got out of there pronto.
Next time, my friends will be with me and it will die!