Thornbloom

As you cast this spell the piece of plant you used as material grows covering yourself or a creature you can touch whithin 5ft of you, if it is a unwilling creature it must suceed a dexterety Saving throw to avoid the effect, in that case the spell fail.
Until the end of the spell, or until you desmiss it the targets AC increases by +1 and its unarmed attacks deal an extra 1d6 mágical piercing damage, 
If the target takes fire damage , it takes an addictional 2d6 fire damage, the thorns are burned away and the spell ends. 
In addiction creatures grappled or grappling this spells target suffer 1d6 mágical piercing damage on the start of each of the spells target turns