From Dragon Quest Wiki

Sag is a spell introduced in Dragon Quest Monsters: Joker.

It was the first attack-lowering spell in the series, predating the creation of Blunt in the ninth mainline game by approximately three years in Japan and abroad. It would continue to appear in the Monsters spin offs until it was retired for Blunt in Joker.

Dragon Quest Monsters: Joker[edit]

Sag costs 6 MP to cast and decreases one enemy's attack damage by 25%. It can be learned from:

Dragon Quest Monsters: Joker 2[edit]

Sag can be learned from all the skills it could be previously, though Diabolist now requires 53 points.

Dragon Quest Monsters: Terry's Wonderland 3D[edit]

Dragon Quest Monsters 2: Iru and Luca's Marvelous Mysterious Key[edit]