Lin Kamau, Treetop Visionary

Prophetic (If Lin Kamau would make you draw cards, exile that many cards from the top of your library face down instead. You may look at them at any time and cast those cards for as long as they remain exiled for {1} less.)
{t}: Draw a card, then add one mana of any color. Use that mana only to cast exiled spells.
"I only use prophecy for my love to the trees." -Lin Kamau