Mana Severance

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

Island

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

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.

Counterspell

Laboratory Maniac

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