A strange sphere is easily held in one hand with a button on one side, and a hatch is used to affect familiars, unique mounts, animal companions, magical beasts, and normal animals. By pressing the button and tossing it at the target creature's space, it opens and envelops them in light, drawing them inside. If used against an unwilling animal, it invokes a DC 16 Constitution save vs. the effect. Capturing a hostile animal pacifies them upon their containment for one day; on release, they will fight for you until they are knocked unconscious, at which point you will have to heal them before they can re-enter their Pokeball. If failed to heal within a round, the captured creature dies.

Once inside, the animal is safe from harm and does not age nor need to breathe, eat, or sleep. They are contained in stasis inside the sphere and can be deployed repeatedly by pressing the button and tossing them to the square where the creature will appear. This means a bulky animal companion can be transported safely, or a familiar can be kept from harm.

The sphere is durable and composed of adamantium, with an AC of 20 and 30 hp. If broken, the magic immediately ends, and the animal bursts out at the ball's point. As per all conjurations, contained monsters cannot be released in mid-air or expanded in a space that cannot hold them (such as an elephant in a thin hallway), but they may knock people and movable furniture aside if they are sufficiently large enough when they appear. If the ball is broken (not just released) and the area is not large enough to hold the monster, it takes 1d6 damage and is shunted off to the nearest space up to 100 ft away. Repeat the injury and jump until a stretch is found.

They're usually found colored red and white for some reason.

Notes: When attuned you can use your action to summon the contained creature in the Pokeball. You say "(Creature) I choose you!", Summoning, Combat, Container