dark bomb

you shoot an orb of darkness and it explodes and captures them ( anything in the zone ) in a tightness of darkness holding them until spell is triggered

on a fail save you take a quarter of your current hit points.

fail save to doge the orb is dex 15

after every action roll a strength save of 12 on fail take 1d8 of damage if save doesn't fail you roll a 1d10 to see if the grasp Explodes 5 or lower boom 6 or higher doesn't go boom you still get out even if it explodes on boom take 1d6 of damage 

also it lasts for 5 actions then they all go boom for 2d6

also when you leave the grasp you heal a quarter of your max hit points