Consider

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Draw a card.

Angelsong

Prevent all combat damage that would be dealt this turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Stream of Thought

Target player mills four cards. You shuffle up to four cards from your graveyard into your library.
Replicate {2}{U}{U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Holy Day

Prevent all combat damage that would be dealt this turn.

Plains

Ethereal Haze

Prevent all damage that would be dealt by creatures this turn.