Temporal Collapse

Choose one creature you can see within range. It must make a CON save, taking 44 (8d10) necrotic damage on a failed save, or half as much on a success. On a failed save, its speed is halved and it has disadvantage on saving throws until the end of its next turn.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.