Magar of the Magic Strings, and Time Warp

Prerequisites

• Magar of the Magic Strings on the battlefield
• Time Warp in hand
• An opponent is unable to block and kill creatures you control
• available

Steps

1. Cast Time Warp by paying , causing you to take an extra turn after this one
2. Activate Magar by paying , noting Time Warp and putting it face down as a 3/3 creature
3. Move to your next turn
4. Deal combat damage to an opponent with the face down creature
5. The face down creature triggers, causing you to cast a copy of Time Warp without paying its mana cost
6. Resolve the copy of Time Warp, causing you to take an extra turn after this one
7. Repeat from step 3

Results

• Infinite turns