Anywhere on DISC 4?

[Christmas]

You can draw it from Seifer in Lunatic Pandora or refine from Aura stones.

EDIT:

Tool-RF:

1 Circlet 2 Aura Stones

1 Fury Fragment 2 Aura Stones

1 Hypno Crown 10 Aura Stones

1 Hyper Wrist 10 Aura Stones

1 Steel Pipe 1 Aura Stone



Supt Mag-RF:

1 Fury Fragment 5 Aura