Well, if it's a vermin swarm, it would take the Con damage, right? I'm not sure I'd want to make it quite so fiddly.
Well, if it's a vermin swarm, it would take the Con damage, right? I'm not sure I'd want to make it quite so fiddly.
That'd solve the "deadlier against swarms" problems as AoE attacks do double damage against swarms if I remember the rules rightly.
Methinks the problem might be you're suggestion looked like a single target attack, and those don't work on Swarms (since killing a single bug among thousands makes no real difference).
I was thinking it'd be an area effect attack, probably a burst from the Myconid. Although we could make it a ranged burst. Something like a "puffball" that can be projected 40 ft., then explodes in a 10 ft. burst?
That'd solve the "deadlier against swarms" problems as AoE attacks do double damage against swarms if I remember the rules rightly.
Hmm... maybe we could kill two vermin with one special attack and make the "Venom Quills" an exploding pesticide bomb?
Nah, I like the poison version better, 'though we could make them more effective against Vermin.
How's this:
Spores (Su)
Pesticide: As a standard action, a shroomling can spit out a puff of spores with a range of 40 ft. which explodes in a 10 ft. burst. All creatures within the burst must succeed at a DC X Fortitude save or be nauseated for 1 round (?) and then sickened for 1d4 rounds (?). These spores do 3d6 damage (?) to any Vermin within the burst, or 6d6 to any swarm of Vermin. The damage is halved if the Vermin succeed at the Fortitude save.
Quills
Venom: A venom quill does normal shortspear damage and transmits a nasty poison (injury, DC X Fortitude save, initial and secondary damage 1d3 Con, or 1d6 Con if the target is a Vermin). This venom is supernaturally fast, so the secondary damage takes effect after 1 round, not the 1 minute delay of normal poison.
Looks good to me.
Venom: A venom quill does normal shortspear damage and transmits a nasty poison (injury, DC X Fortitude save, initial and secondary damage 1d3 Con, or 1d6 Con if the target is a Vermin). This venom is supernaturally fast, so the secondary damage takes effect after 1 round, not the 1 minute delay of standard poison. The save DC is Charisma-based and includes a +Y racial bonus.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.