Shahra, Genie of the Ring

Flying
Reconfigure {3}{u} ({3}{u}:Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn’t a creature.)

Equipped Creature has "{t}: Search your library for a non-creature spell, reveal it, Shuffle then put it ontop of your library and put a burden counter on Shahra, activate only
if Shahra has 3 or less burden counters."

Sacrifice Shahra: Equipped creature gains hexproof
and indestructible until end of turn.