It taps for a sizeable chunk of mana, but the catch is that it can't be used to cast spells from your hand
Interestingly, Energy does not disappear at the end of steps, phases, and even turns, allowing players to stockpile it for big plays
But because it is an attack, you will be wasting a turn not damaging your opponent
Chief: Honestly, this would feel really good if black had access to Greater Good
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