Chthonian Nightmare
Eternal Witness
Time Warp

   Prerequisites

What do I need to start this combo?
Eternal Witness in your graveyard.
Chthonian Nightmare and Time Warp in hand.
You control a nontoken creature with mana value 3 or less.
3 the first turn, with 5 each extra turn available

   Steps

How does this combo work?
1
Cast Time Warp 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 eee, sacrificing a creature with mana value 3 or less, and returning Chthonian Nightmare from the battlefield to your hand, returning Eternal Witness from your graveyard to the battlefield.
6
When Eternal Witness enters the battlefield, it triggers, returning Time Warp 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 eee, sacrificing Eternal Witness, and returning Chthonian Nightmare from the battlefield to your hand, returning a creature with mana value 3 or less from your graveyard to the battlefield.
10
Repeat.

   Results

What do I get from this combo?
Infinite turns
Lock
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