The price graph for the normal variant of Aether Refinery already shows a slight decline, however, this could just be further fluctuation
Naturally, Nintendo, The Pokmon Company and developers Creatures Inc
This mechanic was pushed heavily over the last three years, but it didn't really slow the game down, as players can summon monsters seemingly an infinite number of times now
If you are interrupted, you can use Triple Tactics Thrust to search for Triple Tactics Talent to resolve either of the 3 effects: Most of the time, you will be getting control of the opponent's Monster to use as one of your materials since they would be Zombies when Zombie World is active
But if Ace Spec and EX cards were easy to get, it would take the challenge away for trainers
Versatility is invaluable in Commander