Official Move Approval IV

[Mark]

Halt (300,  Debuff Proficiency,  Time Manipulation):
Halt is a defensive move that is employed by King Sombra. What this does is create a zone of 6 by 6 feet around him. This dome doesn’t block any damage that is headed his way, but instead it would slow it down massively. This slows attacks that normally take seconds to take minutes, and minutes to take fifteen-twenty minutes. However this spell only lasts about 2 minutes and takes 30 seconds for him to charge up. IN addition he cannot do other moves when performing this spell. Furthermore the spell requires that his mouth be uncovered as he must actually speak these words. “Chain the river of time, and bind the current. Seal the flow of time and make it obey my wishes,  HALT!”   This has a 1 minute cool down upon completion.

This move is a bit too powerful as-is, since it essentially makes Sombra un-hittable as long as he’s in the field; having two minutes to dodge things coming in at a crawl means you’ll be able to dodge anything. If you want to have the effect be this severe you’d have to make it only be in effect while he’s concentrating (and not able to use other moves like you said) and give it a fairly large stamina drain depending on what's entering the field. A weak bullet wouldn't need to wipe him out but slowing down a stronger move would take more effort (or cause the field to fall if you'd prefer). I’d also say that Sombra wouldn’t be able to do anything more than walk slowly while maintaining it, which would allow you to dodge but not like have a moving dome that can cheese moves aimed at other people. Also, since this move includes Debuff I'm assuming you're wanting to slow people entering the field to melee you as well, so expect that to be pretty draining on him in-general. Lastly, you would need Area Attack for this (I know you have it already but it should be listed in the requirements bit).