Mowgli said:One more try with the grapple -- I don't know of any rules in D&D that allow for "Stunning" purely through non-lethal damage, other than simply doing enough to drop them below 0 hit points, and I don't think we'll be doing that before he gets over the side so I'm trying to hold him.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.