Lucid Dreams

For the duration of the turn, you may cast permanents from your hand no cost. During your end step or if they would leave the field, exile the cards cast this way and remove all tokens and counters they created.
A dream where you no you're awake sounds like a great experience. But in my eyes, it's a prison. A cage I can't leave, no way to escape, and I'm conscious the whole time. The walls are closing in, and ther