I do feel like the cards designed for our format have been wildly successful in many ways, and unfortunately a lot has gone unexplored
I know that a lot of people see it as filler, and well, it was, but that doesn't change that it was a lot of fun
Go go, Super Quantums
Slowed down game combined with singleton format also means that it's not the end of the world to miss your setup by few turns
Sharpshooting, for the low price of a Water Energy, did 30 damage to 1 of the opponents Benched Pokemon
Beyond that, the mechanic is pretty much just a twist on a +1/+1 counter mechanic, which means the Black Rose is a nice option to lead a counters deck, with the reanimation ability adding that Grixis flavor to shenanigans you would normally associate with the color green