New Gameplay Mechanics: Cards introduce energy acceleration, disruption tactics, and unique synergy effects
Mind Grind costs X and one Blue and one Black, and it reads, Each opponent reveals cards from the top of their library until they reveal X land cards, then puts all cards revealed this way into their graveyard
VSTAR Pokemon are less risky overall, and the difference in core power isn't necessarily equivalent to that extra Prize Card involved in knocking out VMAX Pokemon
Eight is typically too much to pay unless it wins you the game on the spot, and I think Ardyn is just too vulnerable to be as good as the other expensive bombs in this set like Summon: Knights of Round and Summon: Bahamut
This is for lockdown archetypes like Fog and Stasis
The only issue is it gets less fun when you've been doing largely the same thing for a couple of months in a row