Wondrous Item

Uncommon

These mithral charms resemble a type of woodland beast and can be easily worn on jewelry or carried by hand. You can use an action to touch a charm and speak its command word-typically the creature's name in Sylvan-to cause one or more of that creature to appear in an unoccupied space that you can see within 30 feet of you. Such a creature is considered to be fey, instead of beast, and is friendly to you and your companions. It understands your languages and obeys your spoken commands to the best of its ability (no action required by you), and takes its turn immediately after yours. A summoned creature remains for up to 10 minutes, but disappears early if you use an action to end the effect or if it's reduced to 0 hit points.
  Once the charm has been used, it loses its magic and can't be used again. When found, the GM chooses the kind of charm it is or determines it randomly from the table below. When you summon a creature using the charm, you choose which beast it takes the form of, summoning the corresponding number of them.  

d8	Charm	Summoned Creatures
1	Monkey	4 baboons or 2 apes
2	Bear	2 black bears or 1 brown bear
3	Boar	4 boars or 1 giant boar with half as many hit points
4	(Stag)Deer	4 deer or elk, or 1 giant elk with half as many hit points
5	Frog	4 frogs or giant frogs, or 1 giant toad
6	Panther	4 panthers or 1 tiger
7	Ram	4 goats or 2 giant goats
8	Wolf	4 wolves or 1 dire wolf