Molten Slag

4th-level enviromnental

Activation Time: 1 action
Range: Touch
Duration: 1 minute

You can reduce stone or metal to molten slag. A 5-foot cube of rock or metal of any sort becomes an equal volume of thick and flowing magma or slag that remains for the power's duration.

If you activate this power on a wall or door, you create a hole to a maximum of a 5-foot cube. If you use this power on ice, the hole is a 10-foot cube.

If you active the power on an area of ground, it becomes soft enough that creatures can sink into it causing 8d8 fire damage immediately and an additional 8d8 fire damage at the beginning of each of their turns for the duration.

Each foot that a creature moves through the slag costs 5 feet of movement, and any creature on the ground when you activate the power must make a Strength saving throw. A creature must also make this save the first time it enters the area on a turn or ends its turn there. On a failed save, a creature sinks into the slag and is restrained, though it can use an action to end the restrained condition on itself by pulling itself free of the slag.

If you use the power on a ceiling, the slag falls. Any creature under the slag when it falls must make a Dexterity saving throw to avoid it. A creature takes 4d8 fire damage on a failed save, or half as much damage on a successful one.

At the end of the duration, the slag cools and hardens, but retains the new shape.

At Higher Levels. The damage increases by 1d8 for each level above 4th.

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