Pyrior, Of Boiling Isles War

Marrowhill - you can pay a 1 life If you do, search your library for a card named "Boiling Isles Bone Army" and put it onto the battlefield without paying its mana cost.

Boiling Isles - When you declare your attacking creatures you can pay X {r}, if You do, Pyrior
deals X additional damage. Where X is the amount
of damage Pyrior will deal.

"The Boiling Isles they burn more than ever"