It is primarily filled with 300/400/500 attack monsters with only a few attributes and almost useless spells (Sparks - Deal 50 (!) damage to the opponent's LP)
The Fire-type starter Pokmon also has Steam Artillery, which is a straightforward move that does 160 damage with no other conditions or secondary effects
Maybe this change was what stopped a possible third game based off the next Pokmon TCG set, Gym Heroes
While this deck is built using haste as a key focus, there are plenty of other mono-red aggro decks built with mechanics such as raid, menace, and prowess featured throughout
I am personally trying to unlock the Mew card, and have found this Pokemon TCG Pocket Card Tracker spreadsheet with thanks to u/Maxwell1755 on Reddit very useful for the endeavor
You can hold fire with Fighting-type stalwarts like the new Sudowoodo and back up the deck with Lucario and Rampardos but the issue is that by the time you have Garchomp EX ready to go, your opponent would have high-damage hitting EX cards ready as well