Calciform Pools | 270 | Time Spiral

Set: Time Spiral
Rarity: U
#: 270
Creature Type or Sub Type: Land
Rules Text Contains: T: Add 1 to your mana pool.
1, T: Put a storage counter on Calciform Pools.
1, Remove X storage counters from Calciform Pools: Add X mana in any combination of W and/or U to your mana pool.