Despite getting a revival, the core ex mechanics are liable to change
Your opening turns focus on Torchic, using Rare Candy to jump straight into Mega Blaziken exs damage curve, and drawing aggressively with Copycat, Poke Ball, and Professors Research
SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE QCSE Quarter Century Secret Rare Ultimate Slayer X SPELL Your opponent cannot activate monster effects in response to this card's activation
This has considerable implications as you can now allow the new cards to dictate the path your deck will take, whereas before your colors where already set when you came to Pack 3, and the newest set was merely used to flesh out your deck in its already defined colors and archetype
Rather, it changes the results of that damage
The set was revealed earlier than usual because the TCG's Storm Emeralda set, also starring a Mega Rayquaza ex, will be revealed in the next week or two.