Sacred Foundry [Zendikar Expeditions] Planechase Set: Arena League 1999 Type:

Set: Arena League 1999 Type: Creature — Imp Rare Cost: {B}{B} Flying When you cast a creature spell

whenever either of those creatures deals combat damage

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Sometimes it's ostentatious to go unseen

Sacred Foundry [Zendikar Expeditions] Planechase Set: Arena League 1999 Type:Set: Zendikar Expeditions Type: Land Mountain Plains Mythic Cost: ({T}: Add {R} or {W}.) As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.