Spythronar Swarm

The spythronar swarm can use a bonus action to take the Hide action.

The spythronar swarm can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

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

While in contact with a web, the spythronar swarm knows the exact location of any other creature in contact with the same web.

The spythronar swarm ignores movement restrictions caused by webbing.

Melee Weapon Attack: +5 to hit, reach 0 ft., one creature in the swarm's space. Hit: 10 (4d4) piercing damage and 9 (2d8) lightning damage, or 5 (2d4) piercing damage and 4 (1d8) lightning damage if the swarm has half of its hit points or fewer.

The spythronar swarm weaves webbing, covering a 5-foot square. The swarm can then give up 1 hit point to create a spythronar sac in that space. If the swarm's webbing covers a 10-foot square, it can give up 23 hit points as part of the same action, creating a spythronar web with the same number of hit points. The swarm can't drop to 0 hit points to create a sac or web.

If the swarm weaves an incomplete web, that web is a normal web rather than a sentient, monstrous one. A creature that enters this normal web's space must succeed on a DC 10 Strength saving throw or become grappled (escape DC 10) and restrained while grappled in this way. Each 5-foot square of this web has AC 10; the damage vulnerabilities, immunities, and resistances of a spythronar web; and 5 hit points.

4/DAY