
Sorcery
Search your library for a card, put that card into your hand, then shuffle.

Cheap black tutor putting a card on top of library.

One-mana sorcery tutoring to top of library.

Same effect for one more mana, fetches any card to hand.

Tutors any card to hand for 3 mana.

Tutors instant/sorcery to top, comparable selection.

Black tutor that can also cast the found card.

Cheap repeatable black tutor to hand.

Cheap black tutor exiling for a named card.
→ Win the game
→ Infinite turns, Lock
→ Infinite turns, Lock
→ Infinite turns, Lock
→ Infinite turns, Lock
→ Infinite turns, Lock