They are one part split card and one part double-faced card and function like both and a little different at the same time
Includes An Offer You Can't Refuse, Commandeer, Daze, Dispel, Disrupting Shoal, Fierce Guardianship, Flare of Denial, Flusterstorm, Force of Negation, Force of Will, Mana Drain, Mental Misstep, Mindbreak Trap, Misdirection, Pact of Negation, Strix Serenade, Swan Song, and Trickbind
There are certain gameplay implications caused by these rules that make the format so fun and interesting: Since your deck needs to be monotype, you can't rely on the traditional support Pokemon
If theres a particular deck at the table that you expect to give you trouble, attach this curse to that opponent and accelerate their demise
* 2-card Collector Booster Sample Pack
There are many powerful Pokemon in this set to discover, such as the shiny version of Blastoise featured in the set as Radiant Blastoise [Pokemon GO]