Starfield Auspex

Whenever a basic land you control becomes tapped for mana of a color, if your devotion to that color is seven or greater, add an additional mana of that color. (Each colored mana in the mana costs of permanents you control counts toward your devotion to that color.)
"I have seen it! Nylea will grant us the boon of fruitful hunts if we hunt only in the Nistos."