Stomping Ground [Ravnica Allegiance] Spirit Knight For each creature you control

For each creature you control of the chosen type

When Snapcaster Mage enters the battlefield

tap all lands that player controls that could produce any type of mana that land could produce

Set: Mercadian Masques Type: Sorcery Rarity: Rare Cost: {3}{R}{R} You may exile a red card from your hand rather than pay this spell's mana cost

The Witch Elves are

Stomping Ground [Ravnica Allegiance] Spirit Knight For each creature you controlSet: Ravnica Allegiance Type: Land Mountain Forest Rarity: Rare ({T}: Add {R} or {G}.) As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. "What we begin, the End Raze will finish. Then we will dance in Ravnica's rubble." Nikya of the Old Ways