Mana Echoes [Onslaught] Onslaught You may put a green

You may put a green permanent card with converted mana cost X or less from among them onto the battlefield

add this card's effects to that spell

Set: Weatherlight Type: Land Rarity: Uncommon Gemstone Mine enters the battlefield with three mining counters on it

Set: HarperPrism Book Promos Type: Artifact Rare Cost: {0} At the beginning of your upkeep

Mana Echoes [Onslaught] Onslaught You may put a greenSet: Onslaught Type: Enchantment Rare Cost: {2}{R}{R} Whenever a creature enters the battlefield, you may add an amount of {C} equal to 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.