a glove with green thorns on it.

While wearing this glove, Your unarmed attacks deal a extra 1d4 piercing damage, when you hit with a unarmed attack you can use a bonus action to eject the thorns in the target, the target take 1d4 + 1 piercing damage at the start of it's turn, the target can use a action to remove the thorns (doesn't work on undead or contructs).