Hadō #12: Fushibi

Name: Hadō #12: Fushibi
Type: Hado
Level: 1

Appearance: Invisible to the naked eye.

Effect: Delays the activation of another Kido in order to prepare a trap, triggered upon a command word or movement.

Gimme a number of posts which this can be active before either the Kido expires or activates prematurely. We don't want it indefinite.

Not sure how long Momo had it ready before it was tripped, she was the only one who ever used the spell.
For balance's sake, it should really be a pre-fight kinda thing, so maybe something like 5 posts, with a limit of only having one instance active at a time. And probably better to just have it phase out if not activated, instead of going off when the limit is reached, since it's meant for traps, not for setting up a delay-blast fireball and leaving before it goes off. That would need to be a different spell.