Chthonian Nightmare + Temporal Manipulation + Izzet Chronarch

Chthonian Nightmare

Temporal Manipulation

Izzet Chronarch

How it works

1. Cast Temporal Manipulation by paying 3, causing you to take an extra turn after this one.
2. Move to your next turn.
3. Cast Chthonian Nightmare by paying 1.
4. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
5. Activate Chthonian Nightmare by paying EEEEE, sacrificing a creature with mana value 1 or less, and returning Chthonian Nightmare from the battlefield to your hand, returning Izzet Chronarch from your graveyard to the battlefield.
6. When Izzet Chronarch enters the battlefield, it triggers, returning Temporal Manipulation from your graveyard to your hand.
7. Cast Chthonian Nightmare by paying 1.
8. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
9. Activate Chthonian Nightmare by paying at most E, sacrificing Izzet Chronarch, and returning Chthonian Nightmare from the battlefield to your hand, returning a creature with mana value 1 or less from your graveyard to the battlefield.
10. Repeat.