Library of Dominaria

{t}: Add {c}.
At the beginning of your upkeep, you may pay {1}{w} and tap Library of Dominaria to reveal the
top card of your library. If it's an enchantment
card, you may put it into your hand. The same
goes for {1}{u} and instant card, {1}{b} and sorcery
card, {1}{r} and artifact card, and {1}{g} and
creature card.