Requires

Alania, Divergent Storm must be on the battlefield. Reiterate must be in hand. 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 Reiterate by paying , targeting the additional sorcery.
4. Alania triggers, causing an opponent to draw a card and you to copy Reiterate, with the copy targeting the original Reiterate.
5. Resolve the copy of Reiterate, copying the original Reiterate, with the copy targeting the original Reiterate.
6. Repeat step 5.

Results