Ball of Summon Creature

These tiny balls contain a creature inside of them, which when made contact with steel, summons the creature from a figurine that pops out from it. They are made of a hard, plastic substance and around five can be stored easily in a pocket or pouch.

As an action, you can throw this ball or shoot it out of a sling out to a range of 60ft. You can make a ranged weapon attack, and on a hit, the ball will deal 1d6 bludgeoning damage and land on the ground.

If the ball touches Metal, it opens up and turns into a creature with a CR based on the Rarity of the item and of the creature type specified in the Creature table below. Roll initiative for the Creature, in which the DM takes its turns. The creature is hostile to all creatures whilst in Combat, prioritizing the closest creature, before becoming docile to the surviving creatures when combat ends. The creature persists until it drops to 0 HP or if it touches metal. Being reduced to 0hp destroys this magic item Whilst touching metal reverts it back to this magic item.

Sentience. Each Ball is sentient with the creature trapped inside. The creature can communicate to the creature it's in possession of  telepathically if the following requirements are met:

The creature holding the ball knows at least one language.
The creature inside the magic item has an intelligence score of 5 or higher.

The creature's personality is based on the creature's type and alignment and retains its Intelligence, Wisdom, and Charisma scores.

Notes: Ranged Weapon Attack: Bludgeoning