[Polyhedrooze] Caltrooze (Patreon)

Wondrous item, uncommon

Filled with a caustic mixture that discharges when stepped on, these tetrahedral caltrops present a much more dangerous hazard than their mundane variety. A typical bag of these 1-inch health and safety nightmares contains enough caltrops for one use.

Moving Caltrops. As an action, you can spread a bag of caltroozes to cover a 5-foot-square area of ground. Any creature that enters the area must succeed on a DC 15 Dexterity saving throw or stop moving this turn and take 1 piercing damage. Small bubbles of acid forming and bursting inside the caltroozes cause them to roll and shift; a creature that moves through the area of the caltroozes at half speed makes the saving throw against them with advantage.

Corrosive Chaos. If a creature fails the Dexterity saving throw, its walking speed is reduced by 10 feet until it regains at least 1 hit point, and it must roll a d4 and consult the table below to determine what additional effects take place:

d4

1

The acid in the caltroozes discharges in a single burst. The creature takes 6d6 acid damage.

2

The acid takes on lubricating qualities. While the creature’s speed is reduced by the caltroozes, it must succeed on a DC 15 Dexterity saving throw at the end of each of its turns or fall prone.

3

The acid coats the creature’s feet, continuously eating away at them. While the creature’s speed is reduced by the caltroozes, it takes 1d6 acid damage for every 5 feet it walks or climbs.

4

The acid causes the creature’s feet to temporarily deform. While the creature’s speed is reduced by the caltroozes, it has disadvantage on Dexterity saving throws.

After a creature fails a saving throw against the caltroozes, they are emptied of acid, and you can’t use this property again until you spend 10 minutes decanting a phial of biomantic acid into all the caltrops. The caltroozes can still be used as regular caltrops that deal magical piercing damage.Download here