Name:Rhystic Cave
ManaCost:no cost
Types:Land
A:AB$ ChooseColor | Cost$ T | AILogic$ MostProminentInComputerDeck | SubAbility$ DBMana | InstantSpeed$ True | SpellDescription$ Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant.
SVar:DBMana:DB$ Mana | Produced$ Chosen | UnlessCost$ 1 | UnlessPayer$ Player | SubAbility$ DBCleanup | SpellDescription$ Add one mana of the chosen color.
SVar:DBCleanup:DB$ Cleanup | ClearChosenColor$ True
AI:RemoveDeck:All
Oracle:{T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant.
