this actually makes it too powerful. 10 rounds makes it almost gauranteed death. I could see saving every round for 3 or 4 rounds vs death and simply doing away with the damage. That would be an appropriate 9th level spell.I had this idea to try and get Power Word Kill up to stuff with some of the superior 9th level spells. what do you all think of this one?
Power Word Kill
Duration 1 minute
Range: 60 feet
Target: 1 creature you can see within range.
The target becomes cursed with the specter of death. If the target has fewer than 100 hitpoints at any point during the spell's duration, the target dies, and the spell ends. A remove curse automatically dispels this effect.
So the idea here is to make the spell a bonus action, and allow it to be more of a "curse" type effect on the creature. This way you don't have to "guess" the target's HP, you can beat on them, and as soon as you hit the threshold, they die.
Now maybe the bonus action is overkill, but there is a pretty strong gap to get to the better 9th level spells, so I figure I would go big. What do you think, does this make the spell worthy of its 9th level peers?