Magic: the Gathering (MTG) Artifact card from Alpha Edition courtesy of Deckmaster
All red creatures gain +1/+1 and all mountains provide an extra red mana when tapped.
1E • ENChristopher Rush
™ & © 1993—1993 Wizards of the Coast
Legal in: Legacy,Vintage,Commander
10/4/2004 Dual lands which have Mountain as one of their types produce an extra red mana when tapped for either color.