Echoing Cavern

As this land enters, choose a creature type.

: Add .

: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.

As this land enters, choose a creature type.

: Add .

: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

As this land enters, choose a creature type.

: Add .

: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type or activate an ability of a creature source of the chosen type.

: Add .

: Add one mana of any color. Spend this mana only to cast Omen spells.

, : Add one mana of any color.

When you play this land for the first time, its name forever becomes a creature type and a noncreature card type of your choice belonging to your first name. (For example, Gavin's Dragon and Sorceries. Make sure to fill in the name so everyone knows where they're shopping.)

: Add .

: Add one mana of any color. Spend this mana only to cast spells of the chosen types or spells whose names begin with the first letter of your name.

As this land enters, choose Elemental, Elf, Faerie, Giant, Goblin, Kithkin, Merfolk, or Treefolk.

: Add .

: Add one mana of any color. Spend this mana only to cast a spell of the chosen type or activate an ability of a source of the chosen type.