This legendary artifact lets you play the top card from your deck anytime you like, while swapping their mana costs out for an equivalent life lost exchange
This means that they can then only tap for Red mana - and if your opponent doesnt even have Red in their deck, it could well win you the game on the spot
Cards that only cost Phyrexian mana like Gitaxian Probe or with alternate costs like Thunderclap and Foil dont just make it easier to trigger Eris
Vaporeon, Flabb, and Marshadow all have Rapid Strike cards in the set, just like the Sylveon VMAX
Compare the power of the attacking card to the one being targeted
This 1-cost move allows players to flip three coins, and for each heads, they can attach a fire energy to one of their fire-type Pokemon on the bench