They were distributed exclusively through the Pokemon league program -- handed out at local game shops and organized play events as participation rewards
This allows you to have both or several of your colors by turn 2 and play some turn-2 creatures like Skullbriar, the Walking Grave or Chevill, Bane of Monsters
If the copied creature is copying something else, then Deceptive Frostkite enters as whatever that creature copied, with the listed exceptions
[10] Riley and the others were invited to stay at Crow's hideout and Riley remained by herself, refusing to socialize with the others despite Amanda's coaxing
The redeeming feature of this critter is the ability to repeatedly bounce and recast it forming a soft lock on your opponent
Finally, the Miss Fortune Sisters are also Hisui characters that appear as villains in Legends: Arcues