Potion

Uncommon

This dark, viscous liquid seems to move of its own volition. It's used in corrupting the forest and its creatures.   Effect: When poured on the ground, it can corrupt a 10-foot square area, making the vegetation twisted and malevolent. Creatures entering or starting their turn in this area take 1d4 necrotic damage. If ingested (voluntarily or forcefully), a creature must make a DC 15 Constitution saving throw or be poisoned for 1 hour.

Cost: 100gp
Weight: 0.5lb