Swarm of Gremishkas

Traits

Limited Spell Immunity

The swarm automatically succeeds on saving throws against spells of 3rd level or lower, and the attack rolls of such spells always miss it.

Swarm

The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for a Tiny gremishka. The swarm can't regain hit points or gain temporary hit points.

Actions

Bites

Melee Weapon Attack +4 to hit, reach 0 ft., one target in the swarm's space. 12 (3d6 + 2) Piercing damage, or 5 (1d6 + 2) Piercing damage if the swarm has half of its hit points or fewer, plus 7 (2d6) Force damage.

Reactions

Spell Redirection

In response to a spell attack roll missing the swarm, the swarm causes that spell to hit another creature of its choice within 30 feet of it that it can see.