Your search for "Mitsu the Insect Ninja DABL-EN016" revealed the following:
Mitsu the Insect Ninja - DABL-EN016 - Ultra Rare - 1st Edition from Darkwing Blast 1st Edition, available at 401 Games Canada. Rarity: Ultra Rare Card Text:If you control a "Ninja" card or a face-down Defense Position monster: You can...
Mitsu the Insect Ninja - DABL-EN016 - Starlight Rare - 1st Edition from Darkwing Blast 1st Edition, available at 401 Games Canada. Rarity: Starlight Rare Card Text:If you control a "Ninja" card or a face-down Defense Position monster: You can...
Mitsu the Insect Ninja - LART-EN061 - Ultra Rare - Limited Edition from The Lost Art Promotion, available at 401 Games Canada. Rarity: Ultra Rare Card Text:If you control a "Ninja" card or a face-down Defense Position monster: You can...