Since all of our creatures except for Hinterland Sanctifier are legendary, if we can get some counters on Aerith and then have it die (which we can do by playing a second copy thanks to the legend rule), our team will get massive, maybe big enough to win with just one attack
The idea is that the average mana value of your cards should be around two or three mana
Technically, this is true for Zanarkand, Ancient Metropolis, however, the card doesnt seem that amazing
Its a Commander with a ton of value (Im looking to squeeze him into another underwater-themed deck as we speak), but theres also Kindred Discovery in the deck as well to get even more card draw from your Merfolk
Vault Frame and Raised Foil The 30 mythic rares from The Big Score also have a special Booster Fun treatment: the vault frame treatment
In Second Place we had Burn