Incrementor

Incrementor (ナンバープラス) is an ability that appears in Kingdom Hearts: Chain of Memories and Kingdom Hearts Re:Chain of Memories. This ability comes from the Shadow Heartless's Enemy Card. It increases all card values by one. Only Sora, Riku, and the Riku Replica have access to the Shadow Enemy Card, thus they are the only ones who can use the Incrementor ability.