Boiling Rock Prison (TLA)

Land

This land enters tapped. {T}: Add {B} or {R}. {4}, {T}, Sacrifice this land: Draw a card.

Niche mana source for dual-color strategies with a card-draw upside, but the sacrifice cost and tapped entry severely limit its appeal. Most decks running black-red will prefer untapped dual lands or utility lands with more immediately relevant effects. The card draw is a minor bonus that rarely justifies the tempo loss of a tapped land, making this a budget option at best for casual or budget-conscious builds.

Avatar: The Last Airbender — Common