Underworld Breach + Frantic Search + Exhibition Tidecaller Combo

Frantic Search in your graveyard.

Underworld Breach and Exhibition Tidecaller on the battlefield.

You control up to three lands that can tap to produce at least . You have at least three other cards in your graveyard.

Activate up to three lands by tapping them, adding at least .

Cast Frantic Search for its escape cost by paying and exiling three other cards from your graveyard.

Exhibition Tidecaller triggers, causing you to mill three cards.

Resolve Frantic Search, causing you to loot twice and untap three lands.

Repeat.

Significant draw triggers

Significant looting

Significant magecraft triggers

Significant mill

Significant self-discard triggers

Significant self-mill

Significant storm count