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Diminisher is a skill introduced in Dragon Quest Monsters: Joker. It

Dragon Quest Monsters: Joker[edit]

Diminisher is learned by the Demonrider, Hell hornet, and Roseguardin. It grants the following abilities:

Ability Skill Points
Slowing Slug 10
Weakening Wallop 20
Stupefying Strike 30
Helm Splitter 40
Breathtaking Bash 50
Break-dance Beat 60
Blinding Blow 75
Assassin's Stab 100

Dragon Quest Monsters: Joker 2[edit]

Blade Blunter replaces Helm Splitter as the 40 point ability, and Abiliterator replaces Assassin's Stab. All other abilities remain unchanged.