Spellweaver Helix + Regrowth + Emeritus of Abundance // Regrowth + Early Harvest

Spellweaver Helix

Regrowth

Emeritus of Abundance // Regrowth

Early Harvest

How it works

1. Cast Early Harvest by paying its mana cost, untapping at least five basic lands.
2. Cast a copy of Regrowth from exile by paying 1, targeting Early Harvest.
3. Spellweaver Helix's last ability triggers, allowing you to cast the Extra Combat Sorcery, giving you an additional combat phase and an additional main phase this turn.
4. Resolve the copy of Regrowth, returning Early Harvest from your graveyard to your hand.
5. Declare Emeritus of Abundance as an attacker.
6. When Emeritus of Abundance attacks, it triggers, becoming prepared.
7. Repeat each main phase.