Keagan, Chaos Creator

Haste
Whenever a player casts a spell for {0} create
a 2/2 Rave Dwarf creature token. This creature has "Whenever a player casts a spell it gains +1/+1 until
the end of the turn."
{t}: Choose an opponent and look at their hand.
You may choose a permanent spell from their hand.
They play that spell for free.
(This ignores all casting restrictions)

"... for free?"