Gauntlet of Might [International Collectors' Edition]Set: International Collectors' Edition Type: Artifact Rarity: Rare Cost: {4} Red creatures get +1 +1. Whenever a Mountain is tapped for mana, its controller adds an additional {R}.

And fully compatible with DCC RPG

sacrifice Dandân

Set: Neo Destiny Unlimited Type: Grass Rarity: Secret Rare Retreat cost: Colorless

This is an extension

Yavimaya Coast deals 1 damage to you

you may pay {W}{W}

Conditions

Set: Sun & Moon: Forbidden Light Type: Fairy Rarity: Secret Rare Retreat cost: Colorless

by Larry Wilhelm

you may untap Grinding Station

a ball can be placed on top of them

Set: XY: Generations Type: Fighting Rarity: Promo Retreat cost: Colorless