Requires

Alania, Divergent Storm must be on the battlefield. Refuse // Cooperate must be in the graveyard. You have not cast an instant or sorcery spell this turn. You have a sorcery card in hand. Mana needed: plus enough mana to cast the additional sorcery

Steps

1. Cast the additional sorcery by paying its mana cost.
2. Alania triggers; choose not to have an opponent draw a card.
3. Holding priority, cast Cooperate from your graveyard by paying , targeting the additional sorcery.
4. Alania triggers, causing an opponent to draw a card and you to copy Cooperate, with the copy targeting the original Cooperate.
5. Resolve the copy of Cooperate, copying the original Cooperate, with the copy targeting the original Cooperate.
6. Repeat step 5.

Results