Puffbomb
Wondrous item, rare
This 3-inch diameter spherical fungal sac is filled with poisonous spores that burst forth if disturbed.
You can use an action to throw the puffbomb up to 60 feet. The puffbomb bursts on impact, expelling a 10-foot-radius cloud of spores that lingers for 1 round. When a creature enters the cloud’s area for the first time on a turn or starts its turn there, that creature must make a DC 15 Constitution saving throw. On a failed save, a creature takes 2d10 poison damage and is poisoned for 1 minute. On a successful save, a creature takes half as much damage and is not poisoned. A creature poisoned in this way is assaulted by hallucinations and paranoid delusions as if under the effect of the confusion spell. At the end of each of its turns, an affected target can repeat the saving throw, ending the effect on a success.
Alternatively, you can use an action to attach the puffbomb’s sticky end to a solid surface. A puffbomb set in this way will burst when a creature touches it by entering the space it occupies.
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This fungal item is a collaboration with Questiary! These guys are making fantastic monsters and bosses every week, all illustrated and formatted for 5E play! They're stellar folks, so go check them out!!
Attached to this post is a .pdf with a whole host of fungal monsters! And HERE is a link to their patron-exclusive website, with unlimited access to their database of monsters until April 18.
More to come!