blissey pokemon card value | XY—Promo If heads Blissey [Reverse Holo] #52 Prices

This 5/5 on curve rare with deathtouch will draw you a card with another nontoken dies

The only comparison when looking through the history of the hobby is of course LEGEND cards, which you can read about here

1 Halo Forager

There is a vastly higher chance that a simple card is exactly situationally perfect and as you are only paying for that one thing alone you are getting the best possible deal on that perfect card

Now that we've covered the mechanics, let's take a look at the other cards

For the Invasion set, these two spells would be ally colours and then the following set, Apocalypse , would have a combination of only enemy colours