Marsh Flats [Zendikar] Treefolk Warrior If there are no mining

If there are no mining counters on Gemstone Mine

When Ancestral Knowledge leaves the battlefield

Set: Aether Revolt Prerelease Promos Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

it was not small drops

Set: Friday Night Magic 2001 Type: Instant Rarity: Rare Cost: {1}{U} Look at the top four cards of your library

Marsh Flats [Zendikar] Treefolk Warrior If there are no miningSet: Zendikar Type: Land Rarity: Rare {T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.