Kaho, Minamo Historian

When Kaho, Minamo Historian enters, search your library for up to three instant cards, exile them, then shuffle.
{X}, {T}: You may cast a spell with mana value X from among cards exiled with Kaho without paying its mana cost.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Consider

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

Long-Term Plans

Search your library for a card, then shuffle and put that card third from the top.

Laboratory Maniac

If you would draw a card while your library has no cards in it, you win the game instead.

Mana Severance

Search your library for any number of land cards, exile them, then shuffle.