Frantic Search | Underworld Breach | Bonus Round

Cards

Bonus Round in hand or in your graveyard.
Frantic Search in hand or in your graveyard.
Underworld Breach on the battlefield.
You have an additional six cards in your graveyard if both
Bonus Round and
Frantic Search are in your graveyard, or you have an additional three cards in your graveyard if either card is in your graveyard.
You control up to three lands that can tap to produce at least ({1} magic symbol) ({U} magic symbol) .
({2} magic symbol) ({R} magic symbol) ({R} magic symbol) at most available.

Cast
Bonus Round either from your hand by paying ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) or from your graveyard for its escape cost by paying ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) and exiling three other cards from your graveyard, ensuring not to exile
Frantic Search if its in your graveyard, causing any instant or sorcery cast this turn to be copied.
Activate up to three lands by tapping them, adding at least ({1} magic symbol) ({U} magic symbol) .
Cast
Frantic Search either from your hand by paying ({2} magic symbol) ({U} magic symbol) , or from your graveyard for its escape cost by paying ({2} magic symbol) ({U} magic symbol) and exiling three other cards from your graveyard.
Bonus Round triggers, copying
Frantic Search.
Resolve the copy of
Frantic Search, causing you to loot twice and untap up to three lands.
Holding priority, activate up to three lands by tapping them, adding at least ({1} magic symbol) ({U} magic symbol) .
Resolve the original
Frantic Search, causing you to loot twice and untap up to three lands.
Repeat from step 2.