Aggressive Fighting build pairing Mega Lucario ex's Fighting Pulse with Hitmontop's Piercing Spin bench damage for relentless tempo pressure.

Riolu
Hitmontop
Mega Lucario ex
Professor’s Research
Copycat
Cyrus
Pokémon Center Lady
Korrina
Poké Ball
X Speed
Rocky Helmet
Protective Poncho
Arena of Antiquity
Source decklists referenced for this guide:
Open Riolu, attach Fighting energy and chain Professor's Research / Copycat for tempo. Evolve into Mega Lucario ex and start swinging Fighting Pulse for 90+ damage, boosted to 120+ with Korrina against ex Pokémon. Hitmontop pings 20 to a benched threat every turn, setting up follow-up Cyrus pulls for the knockout. Detailed matchup data will be updated as the format develops.
Main attacker — Fighting Pulse hits 90+ damage with an extra Fighting energy.
Bench sniper — Piercing Spin hits 20 to the active and 20 to a benched Pokémon.
Boosts Fighting attackers by +30 damage against ex Pokémon.
Stadium — attacks against ex Pokémon do an extra 20 damage.
Pulls a damaged opposing Pokémon into the active spot for a closing knockout.
Bench Riolu and Hitmontop, attach Fighting energy and chain draw Supporters for tempo.
Mega Evolve into Mega Lucario ex and start chaining Fighting Pulse while Hitmontop pings benched threats.
Close with Korrina + Cyrus, using Arena of Antiquity damage to seal OHKOs against ex Pokémon.