During your precombat main phase, cast Wormfang Manta by paying {5}{U}{U}.
Wormfang Manta's first ability does not trigger due to Torpor Orb.
Activate Wizard Mentor by tapping it, returning it and Wormfang Manta from the battlefield to your hand.
When Wormfang Manta leaves the battlefield, its second ability triggers, causing you to take an extra turn after this one.
Cast Wizard Mentor by paying {2}{U}.
Repeat each turn.

Infinite turns

Wizard Mentor

Wormfang Manta

Torpor Orb

Activate Scroll of Fate by tapping it, manifesting Wormfang Manta from your hand.
Pay {5}{U}{U} to turn Wormfang Manta face up.
Activate Wizard Mentor by tapping it, returning itself and Wormfang Manta from the battlefield to your hand.
Wormfang Manta's LTB ability triggers, creating an extra turn after this one.
Cast Wizard Mentor by paying {2}{U}.
Repeat.

Scroll of Fate

During your precombat main phase, cast Wormfang Manta by paying {5}{U}{U}.
Wormfang Manta's first ability does not trigger due to Tocatli Honor Guard.
Activate Wizard Mentor by tapping it, returning it and Wormfang Manta from the battlefield to your hand.
When Wormfang Manta leaves the battlefield, its second ability triggers, causing you to take an extra turn after this one.
Cast Wizard Mentor by paying {2}{U}.
Repeat each turn.

Tocatli Honor Guard

During your precombat main phase, cast Wormfang Manta by paying {5}{U}{U}.
Wormfang Manta's first ability does not trigger due to Hushwing Gryff.
Activate Wizard Mentor by tapping it, returning it and Wormfang Manta from the battlefield to your hand.
When Wormfang Manta leaves the battlefield, its second ability triggers, causing you to take an extra turn after this one.
Cast Wizard Mentor by paying {2}{U}.
Repeat each turn.

Hushwing Gryff

During your precombat main phase, cast Wormfang Manta by paying {5}{U}{U}.
Wormfang Manta's first ability does not trigger due to Hushbringer.
Activate Wizard Mentor by tapping it, returning it and Wormfang Manta from the battlefield to your hand.
When Wormfang Manta leaves the battlefield, its second ability triggers, causing you to take an extra turn after this one.
Cast Wizard Mentor by paying {2}{U}.
Repeat each turn.

Hushbringer

Activate Sneak Attack by paying {R}, putting Priest of Urabraask from your hand onto the battlefield and giving it haste.
When Priest of Urabrask enters the battlefield, it triggers, adding {R}{R}{R}.
Activate Sneak Attack by paying {R}, putting Wizard Mentor from your hand onto the battlefield and giving it haste.
Activate Wizard Mentor by tapping it, returning it and Priest of Urabrask from the battlefield to your hand.
Repeat.

Infinite ETB

Infinite LTB

Infinite red mana

Sneak Attack

Priest of Urabrask

Activate Sneak Attack by paying {1}, putting Priest of Gix from your hand onto the battlefield and giving it haste.
When Priest of Gix enters the battlefield, it triggers, adding {B}{B}{B}..
Activate Sneak Attack by paying {1}, putting Wizard Mentor from your hand onto the battlefield and giving it haste.
Activate Wizard Mentor by tapping it, returning it and Priest of Gix from the battlefield to your hand.
Repeat.

Infinite colored mana

Mycosynth Lattice

Priest of Gix

Chromatic Orrery

Activate Sneak Attack by paying {R}, putting Priest of Gix from your hand onto the battlefield and giving it haste.
When Priest of Gix enters the battlefield, it triggers, adding {B}{B}{B}.
Activate Skyshroud Elf's second ability twice by paying {2}, adding {R}{R}.
Activate Sneak Attack by paying {R}, putting Wizard Mentor from your hand onto the battlefield and giving it haste.
Activate Wizard Mentor by tapping it, returning it and Priest of Gix from the battlefield to your hand.
Repeat.

Combos with "Wizard Mentor"