Talk:Arch Fiend

So I am planning on building up to create one of these guys in my city that has an Abyssal Mantle mine. I am leveling up my stuff and just realized that, I am not producing enough Abyssal Mantle to maintain the upkeep of this guy. 1 Abyssal Mantle mine with 1 miner produces 0.12 abyssal mantle per hour, fully upgraded with 4 miners is 0.48 per hour. This guy requires 1 Abyssal Mantle per hour. My level 5 mine is giving me a bonus production rate of 86%. I need enough mine boosting % to clear 109% production rate just to break even with this guy. Any thoughts?