By paying two energy counters, you can exile Aethergeode Miner from the battlefield, and then return it to the battlefield under its owner's control
Beyond just being fun for players, keeping serialized cards special also works well for Wizards
Eight mana seems like a hefty investment, but blacks access to rituals and the generally prevalent amount of ramp in the format makes it easy to hit
For example, you may find two: Iona, Shield of Emeria and Unburial Rites
Today, the decks which most commonly make use of Dark Patch are the Ancient Box, Roaring Moon, and Roaring Moon/Dudunsparce decks
The process for developing it is quite simple: We will schedule a call and talk about your goals