Helping Hand is a status-boosting Normal-type move.
As of 1.0.4, it can be taught by the Buff Move Tutor of Tsukinami Village Hotel for four Yellow Shards. In 1.0.3, it could be taught by the Ultimate Move Tutor in Tsukinami Village, at a cost of 4 shards of each color. Prior to 1.0.3, it could be taught by a tutor in Nowtoch City for free.
Helping Hand is an increased priority move that will increase the damage done by the user's ally this turn by 50%. It will fail if there is no adjacent ally, or if the ally has already acted this turn. It can still affect an ally behind a Substitute or in the semi-invulnerable turn of a move like Fly or Dig.
Pokémon that learn Helping Hand
By leveling up