Parisha, Renowned Arrester

Vigilance
Whenever Parisha, Renowned Arrester attacks,
detain up to one target creature.
While you're searching your library, you may play
a card named Fblthp, the Lost from you library.
Creatures named Fblthp, the Lost you control
gain "{w/u}: Change a target of target spell
to Fblthp, the Lost".