Amulet of the Summoner

While wearing this amulet, you can cast any spell that summons, conjures or animates creatures of any kind through the amulet. The spell requires the regular spell slots and components, but the concentration of the spell is held by the amulet. For the duration of the spell, you do not have to concentrate on it, and the concentration on the spell can be broken only by destroying the amulet, which has an AC of 20 and 25 HP. 

Notes: spellcaster with an Intelligence score of 16 or more, Buff, Necklace, Jewelry, transmutation