Nanoshard Swarm

This monster doesn't have a single mind (typically because it's a swarm of smaller creatures), and is immune to mental effects that target only a specific number of creatures. It is still subject to mental effects that affect all creatures in an area.

When a nanoshard swarm takes electricity damage, they automatically shift into swarm form.

Requirements The nanoshard swarm is in swarm form

The nanoshard swarm forms a continuous 6-inch-thick solid wall, up to 60 feet long and 10 feet high, originating from any one square in its current space. The wall can follow any path, with each 5 feet being placed on the border between squares. It doesn't need to stand vertically, so it can form a bridge or set of stairs, for example. The wall must be formed in an unbroken open space where its edges don't pass through any creatures or objects. A single 5-foot-by-5-foot section of the wall can be destroyed by dealing 18 points of damage to it, which also reduces the swarm's total Hit Points. A nanoshard swarm can't be knocked Prone or forcibly moved while in barrier form, nor can it voluntarily move. A nanoshard swarm in barrier form can originate tendril attacks from any square of its wall.

Requirements The nanoshard swarm is in swarm form

The nanoshard swarm coalesces into a Huge shape that looks like a humanoid or beast and can hold items. In battle form, its Speed is 15 feet, it's Clumsy 1, and it has the following Strike. Melee 1 limb (reach 20 feet), Damage 4d8+9 bludgeoning

DC 27 reflex, (2d8+6) bludgeoning damage, Escape, Rupture 18 The monster Strides up to double its Speed and can move through the spaces of any creatures in its path. Any creature of the monster's size or smaller whose space the monster moves through can attempt a Reflex save with the listed DC to avoid being engulfed. A creature unable to act automatically critically fails this save. If a creature succeeds at its save, it can choose to be either pushed aside (out of the monster's path) or pushed in front of the monster to the end of the monster's movement. The monster can attempt to Engulf the same creature only once in a single use of Engulf. The monster can contain as many creatures as can fit in its space. A creature that fails its save is pulled into the monster's body. It is Grabbed, is Slowed 1, and has to hold its breath or start suffocating. The creature takes the listed amount of damage when first engulfed and at the end of each of its turns while it's engulfed. An engulfed creature can get free by Escaping against the listed escape DC. An engulfed creature can attack the monster engulfing it, but only with unarmed attacks or with weapons of light Bulk or less. The engulfing creature is Off-Guard against the attack. If the monster takes piercing or slashing damage equaling or exceeding the listed Rupture value from a single attack or spell, the engulfed creature cuts itself free. Effect: Engulf and Swallow Whole A creature that gets free by either method can immediately breathe and exits the swallowing monster's space. If the monster dies, all creatures it has engulfed are automatically released as the monster's form loses cohesion.

The nanoshard swarm collapses into its natural form: a Huge sea of tiny metal spheres. It drops anything it's holding. While in swarm form, the nanoshard swarm's Speed is 25 feet, it can move through any area large enough for a single sphere to fit through without having to Squeeze, and it gains Engulf.