Against decks that are light on interaction, like ramp, its a massive threat
Black & White removed all restrictions for the player going first, so decks that could attack on the first turn of the game could put on a ton of pressure immediately
In Commander, there are plenty of ways to generate unbelievable amounts of energy get something like a Sphinx of the Revelation going and Galvanic Discharge practically removes any creature by the late game
RARE & MYTHIC RARE CARDSAdd Rare cards to your collection with a total of 2 Mythic Rare and 13 Rare cards in each Eerie deck WHAT IS STANDARD?Standard is Magic's most-played 60-card constructed format, where you build decks from the most recently released sets
As an example, look at DFT Fracture Foils vs
Wonderfully, Alpha League rules mimic and approximate this dynamic nicely, sharply constraining rares to 3-copies per card (unless restricted or super-restricted), uncommons to 6 copies per deck, with no limit on commons