Alania, Divergent Storm + Expansion // Explosion

Prerequisites

You have not cast an instant or sorcery spell this turn. You have a sorcery card in hand.

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 Expansion by paying {U/R}{U/R}, targeting the additional sorcery.
4. Alania triggers, causing an opponent to draw a card and you to copy Expansion, with the copy targeting the original Expansion.
5. Resolve the copy of Expansion, copying the original Expansion, with the copy targeting the original Expansion.
6. Repeat step 5.