Magar of the Magic Strings + Rise of the Eldrazi + Hardened Academic

Magar of the Magic Strings

Rise of the Eldrazi

Hardened Academic

How it works

1. Activate Hardened Academic by discarding Rise of the Eldrazi.
2. Activate Magar by paying 1, noting Rise of the Eldrazi and putting it face down on the battlefield as a 3/3 creature.
3. During your next turn, deal combat damage to an opponent using the 3/3 creature that has Rise of the Eldrazi noted.
4. The creature triggers, casting a copy of Rise of the Eldrazi without paying its mana cost.
5. Resolve the Rise of the Eldrazi copy, causing you to take an extra turn after this one.
6. Repeat from step 3 during each turn.
7. Cast Rise of the Eldrazi by paying its mana cost, causing you to take an extra turn after this one.
8. Activate Magar by paying 1, noting Rise of the Eldrazi and putting it face down as a 3/3 creature.
9. Move to your next turn.
10. Deal combat damage to an opponent with the face down creature.
11. The face down creature triggers, causing you to cast a copy of Rise of the Eldrazi without paying its mana cost.
12. Resolve the copy of Rise of the Eldrazi, causing you to take an extra turn after this one.
13. Repeat from step 3.