Regrowth + Emeritus of Abundance // Regrowth + Pyromancer Ascension + Early Harvest + Bloodflow Connoisseur

Regrowth

Emeritus of Abundance // Regrowth

Pyromancer Ascension

Early Harvest

Bloodflow Connoisseur

How it works

1. Cast a copy of Regrowth from exile by paying 1, targeting any card besides the actual Regrowth.
2. Pyromancer's Ascension's first ability triggers, allowing you to put a quest counter on it.
3. Resolve the copy of Regrowth, returning that card from your graveyard to your hand.
4. Declare Emeritus of Abundance as an attacker.
5. When Emeritus of Abundance attacks, it triggers, becoming prepared.
6. During your second main phase, cast a copy of Regrowth by paying 1, targeting the actual Regrowth card.
7. Pyromancer Ascension's first ability triggers, allowing you to put a quest counter on it.
8. Resolve the copy of Regrowth, returning Regrowth from your graveyard to your hand.
9. Cast Early Harvest by paying its mana cost.
10. Pyromancer Ascension's second ability triggers, copying Early Harvest.
11. Resolve a copy of Early Harvest, untapping basic lands you control.
12. Activate those lands by tapping them, adding mana.
13. Resolve the remaining copy of Early Harvest, untapping lands you control.
14. Activate those lands by tapping them, adding mana.
15. Activate Bloodflow Connoisseur by sacrificing Emeritus of Abundance, producing that card's result.
16. Cast the card Regrowth from your hand by paying 1, targeting Emeritus of Abundance.
17. Pyromancer Ascension's second ability triggers, copying Regrowth and allowing you to target Early Harvest with the copy.
18. Resolve both copies of Regrowth, returning Emeritus of Abundance and Early Harvest from your graveyard to your hand.
19. Cast Early Harvest by paying its mana cost.
20. Pyromancer Ascension's second ability triggers, copying Early Harvest.
21. Resolve a copy of Early Harvest, untapping lands you control.
22. Activate those lands by tapping them, adding mana.
23. Resolve the remaining copy of Early Harvest, untapping lands you control.
24. Activate those lands by tapping them, adding mana.
25. Cast Emeritus of Abundance by paying 2.
26. Cast a copy of Regrowth from exile by paying 1, targeting Early Harvest.
27. Both of Pyromancer Ascension's abilities trigger.
28. In response, activate Bloodflow Connoisseur by sacrificing Emeritus of Ideation, producing that card's result.
29. Resolve Pyromancer Ascension's first abiliity, putting a redundant quest counter on it if desired.
30. Resolve Pyromancer Ascension's second ability, copying Regrowth and targeting Emeritus of Abundance with the copy.
31. Repeat from step 18.

This intricate loop transforms the humble act of recursion into a powerhouse engine by leveraging Pyromancer Ascension's ability to duplicate your spells once it accumulates two quest counters. By casting Regrowth to retrieve key pieces, you can continuously recycle spells while Early Harvest untaps your basic lands to keep the mana flowing freely. Meanwhile, Bloodflow Connoisseur acts as the necessary outlet to sacrifice Emeritus of Abundance (also referred to in the sequence by its design variant, Emeritus of Ideation), allowing you to loop its attacks, deaths, and sacrifices indefinitely to generate massive advantages.