Antimagic Grenade Item 0+

This grenade resembles a large coin that rapidly spins when used. When it explodes, the grenade creates an area of antimagic for 1 minute. Creatures in the area when the grenade detonates must attempt a Fortitude save. Creatures that fail their save have difficulty casting spells for the next minute: during that time, 1-and 2-action spells require an additional action to cast. If you have the critical weapon specialization of grenades, creatures that critically fail their save are additionally stupefied 1 for 1 minute.