pokemon xy fates collide booster pack XY: Each player must have a 60 Pokemon XY Fates Collide Booster

Any card that can change targets to eliminate the regret of playing it too early is solid in my book, and this does a ton of work

This means that if you're capable of ensuring these cards are capable of sneaking past an opponent's defenses, you can theoretically cast several of the same spells each turn, potentially accruing absurd amounts of value.

Emerald cards like the Mad Hatter Gracious Host Quest for three lore and need to be dealt with but if your opponent Challenges him, you get to draw a card

Then, if one or more creatures deal combat damage to a player, you make a Treasure token and exile the top of that opponents deck