Claire, Reason's Voice

{2}{t}, Choose one: Creatures you control: have hexproof, or get +X/+X for each color of
permanent on the battlefield, or are unblockable.
Hit shuffle on an audio device of your choice.
For the next X turns, where X is the length of
the song in minutes rounded up, creatures you
control have the chosen effect.
"I don't think you understand how important music education is."