Isagitsune is an Ayakashi master of the black arts with knowledge of 100 spells, armed with the Teni Yōsenken, Natural Leaf-Fan Sword. Using his Fox Concealment Spell, Kitsune Gakure no Jutsu, he steals a hair from Takeru to conduct his Mirror Reflection Spell, Kagami Utsushi no Jutsu to spy on Takeru to look for the sealing character until his cover is blown. His other spells include Fox Whirling Spell, Kitsune Tsumuji no Jutsu, Foxfire Spell, Kitsunebi no Jutsu, Fox Throwing Stones, Kitsune Tsubute, Fox Technique Reversal, Kitsune Waza Gaeshi, Copycat Fox, Mane Gitsune, and Eight Spanning Crows Spell (八咫烏の術, Yatagarasu no Jutsu). He is destroyed by the newly-revealed ShinkenGold's Hundred Fillets, and then destroyed by Tenku ShinkenOh with help from the Ika Origami. His tricky disposition and mysterious techniques are the basis of the Kitsune (狐) of Japanese myth.
- Vulpes, his Power Rangers counterpart in Power Rangers Samurai