Exploding luminescent mushrooms! For the session PC ranged and area attacks deal +2 radiant damage
You are bolstered by unseen ancient forces - For the session, PCs gain resist necrotic 2.
An invigorating breeze swirls through the chasm. PCs ending their turn in the chasm or on the bridge gain 5 temporary hit points
The fight disturbs a radiant mushroom patch. For the session the cave is brightly lit & PC melee attacks deal +2 radiant damage