Dragon Ball has techniques that are situational and not intended to damage the opponent, but one of them has the potential to seal away a Demon King, along with an Immortal God if push came to shove. This technique was the Evil Containment Wave, a force that Master Roshi used against an opponent he believed was unbeatable by any human at the time. The truth was that the Evil Containment Wave is a last-ditch effort to seal away the enemy for a long time so long as there is a proper sealing vessel. In Dragon Ball, this technique is useful.