Kinnan, Bonder Prodigy (Promo Pack) [Ikoria: Lair of Behemoths Promos]

Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced.
{5}{G}{U}: Look at the top five cards of your library. You may put a non-Human creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.