Zethi, Arcane Blademaster + Nexus of Fate + Mystical Tutor

Zethi, Arcane Blademaster

Nexus of Fate

Mystical Tutor

How it works

1. Cast Nexus of Fate by paying 5, causing you to take an extra turn after this one and shuffle Nexus of Fate into your library.
2. Declare Zethi as an attacker.
3. Zethi's second ability triggers, creating a copy of Mystical Tutor and causing you to pay to cast it.
4. Resolve the copy of Mystical Tutor, causing you to search your library for Nexus of Fate and put it on top of your library.
5. Move to your extra turn, causing you to draw Nexus of Fate during your draw step.
6. Repeat.