Monumental wall

Defender. When this enters the battlefield, scry 2.
{t}:{w/u}{w/u}. {t}{w/u}{w/u}: Draw 2 cards, then science once. (To science, look at the bottom 2 cards of your graveyard and/or library and/or exile. You may exile them/one, put them/one onto the bottom of your library, or put them/one on top.)