Exotic Orchard

Lands that produce mana based only on what other lands "could produce" won't help each other unless some other land allows one of them to actually produce some type of mana. For example, if you control an Exotic Orchard and your opponent controls an Exotic Orchard and a Reflecting Pool, none of those lands would produce mana if their mana abilities were activated. On the other hand, if you control a Forest and an Exotic Orchard, and your opponent controls an Exotic Orchard and a Reflecting Pool, then each of those lands can be tapped to produce green mana . Your opponent's Exotic Orchard can produce green mana because you control a Forest. Your Exotic Orchard and your opponent's Reflecting Pool can each produce green mana because your opponent's Exotic Orchard can produce green mana .

Exotic Orchard doesn't care about any restrictions or riders your opponents' lands (such as Ancient Ziggurat or Hall of the Bandit Lord) put on the mana they produce. It just cares about colors of mana.

Exotic Orchard checks the effects of all mana-producing abilities of lands your opponents control, but it doesn't check their costs. For example, Vivid Crag has the ability " tap , Remove a charge counter from Vivid Crag: Add one mana of any color." If an opponent controls Vivid Crag and you control Exotic Orchard, you can tap Exotic Orchard for any color of mana. It doesn't matter whether Vivid Crag has a charge counter on it, and it doesn't matter whether it's untapped.