
As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped.
{T}: Add {B} or {R}.
Foreboding Ruins has 22 printings, first in Shadows over Innistrad (2016). EDHREC ranks it #317 among Commander cards. It appears most in Valgavoth, Harrower of Souls decks (19,248 on EDHREC). 14 public decks on TCG run it. It has 4 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.