Mana Echoes

Enchantment, 2RR (4)

Whenever a creature enters the battlefield, you may add {X} to your mana pool, where X is the number of creatures you control that share a creature type with it.

When the ground is saturated with mana, even the lightest footstep can bring it to the surface.

Illus. Christopher Moeller

Gatherer Card Rulings?, Legality?

• 10/4/2004: You either get zero mana or all the mana. You can't choose an amount in between.
• 10/4/2004: You do get to count the creature itself, you even get one mana if it is the only creature you have on the battlefield (assuming it has at least one creature type).

• Legal in Vintage (Type 1)
• Legal in Legacy (Type 1.5)
• Legal in Classic (MTGO)
• Legal in Commander