Burlap

Motionless Ambush. The burlap will blend into the terrain it lies on top of. It is invisible until it takes damage. A creature damaged by the burlap can make a DC 15 perception check to see the burlap that damaged them.

Healing Sack. A burlap can be wrung out, and it will release the life essence it has absorbed as a thick colorful oil like substance that can  create 1d2 healing potions. If a Burlap has recently absorbed Life essence from Drain Vitality within 24 hours, the oil it releases become 1d2 superior healing potions.

Latch. The Burlap may use its action to attach to a creature within 5 feet of it. The creature must make a DC 15 Wisdom Saving throw to feel that something brushed up against them. Otherwise the creature does not feel the burlaps actions.

Drain Vitality. If the burlap is currently attached to a creature, The Burlap can use its action to begin draining the creatures life essence. The creature will begin to feel lethargic, The host the burlap is attached to must make a Constitution Saving throw, DC 15. On a failed save they take 5d10 necrotic damage and the Burlap gains the amount dealt as Temporary health points. On a successful save the creature takes half damage.

Parasitic Sharing. A creature who makes an attack against the burlap, or tries to grab or move a burlap within 5 feet must make a Dexterity saving throw DC 12. On a failed Save the burlap may use its reaction to latch onto the creature. 

Hitch a Host. If a creature moves within 5 feet of a burlap the burlap can use its Latch action as a reaction.