Power Shield is Ninten's Down Special move in SSBTUF. Ninten creates an invisible shield around him. The shield remains for 10 seconds. If an enemy attacks Ninten during this period, Ninten will only take half damage and knockback from the attack and the enemy will take the same damage and knockback as Ninten.
Power Shield is a PSI technique that appears in Mother. It is learned by Ninten and Ana. When used on a party member, it lowers all physical damage done to them by half, and reflects the attack back at the enemy for the rest of the fight, dealing the same damage as the party member is dealt.