Dreamscape Tide

You may exile a white card, a blue card, a black card, a red card, a green card from your hand, and pay 5 life rather than pay this spell's mana cost.
At the beginning of your end step, exile cards from the top of your library until you exile a nonland, permanent card. Put that card onto the battlefield and put the exiled cards on the bottom of your library in a random order.
Dreams flow into the reality like an untamed river.