Like most Magic: The Gathering cards, the value of Merseine depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Fallen Empires)
They're mechanically identical to the indicated card, meaning you can only play four of them (or one in Commander) in your deck
Since mythics are half as common as rares, we need to double the number of rares, but keep the same mythics
Having the flexibility to wipe away a bunch of tokens means Bloodline Culling will be a great card in any deck that plays it
In the slide above, there are 15 decks presented and it doesn't exhaust the whole picture of the format
Pluto Friendly Pooch & Determined Defender We have two new Pluto cards revealed in English and both are remarkable in their own way