Brinelin, the Moon Kraken + Invasion of Arcavios // Invocation of the Founders + Beacon of Tomorrows

Brinelin, the Moon Kraken

Invasion of Arcavios // Invocation of the Founders

Beacon of Tomorrows

How it works

1. Cast Invasion of Arcavios by paying 3.
2. When Invasion of Arcavios enters the battlefield, it triggers, returning Beacon of Tomorrows from your graveyard to your hand, or searching your library for Beacon of Tomorrows and putting it into your hand, if needed.
3. Cast Beacon of Tomorrows by paying 6.
4. Brinelin triggers, returning Invasion of Arcavios to your hand from the battlefield.
5. Resolve Beacon of Tomorrows, causing you to take an extra turn after this one and shuffle it into your library.
6. Repeat each turn.

This looping setup centers on the ability of Beacon of Tomorrows to grant an extra turn while shuffling itself right back into your library, where Invasion of Arcavios can reliably tutor it back to your hand each cycle. By leveraging Brinelin, the Moon Kraken, casting the expensive Beacon of Tomorrows triggers a massive mana-value-six-or-greater spell effect that bounces Invasion of Arcavios back to your hand, allowing you to replay the Siege and repeat the entire process indefinitely.