4 Oct 2019
Casting an exiled card causes it to leave exile. You can't cast it multiple times.
4 Oct 2019
Escape to the Wilds doesn't change when you can play the exiled cards. For example, if you exile a sorcery card, you can cast it only during your main phase when the stack is empty. If you exile a land card, you can play it only during your main phase and only if you have an available land play remaining.
4 Oct 2019
The additional land that you play doesn't have to be from among the exiled cards.
4 Oct 2019
If you don't play a card exiled this way, it remains in exile.