Don't play this deck like Sabo. This Luffy build is more defensive and grind-focused: your 12-cost Characters become Blockers, letting you slow the game, protect resources, and gradually exhaust the opponent's hand.
Loki is usually more valuable active than attacking. On the opponent's turn he is an 11K Blocker, so giving up his 8K attack often forces the opponent to spend far more resources to break through your defense.
Filling your trash is part of the core plan. Usopp and Jaguar D. Saul do more than search: they prepare Zoro, Pirates Docking Six, Gerd, and the different 2-cost targets for Luffy.
Use Zoro to protect your smaller Characters. Once your trash is full enough, he can stop opposing removal from clearing a board of 2-costs that will later attack at 5K once a 12-cost is established.
Choose Luffy's 2-cost target for the situation. Robin gives -3K Power, Brook attacks the opponent's hand, Sanji fixes an awkward hand, and Chopper gives Luffy Unblockable. The same Luffy can support an aggressive, defensive, or grind-focused turn.
Gerd recycles important resources. By trashing an unneeded card, she can recover an 8-cost or lower Character other than Gerd, including Luffy or a Zoro 2K Counter when defense matters most.
Use the Gerd → Luffy → Gerd loop. Gerd recovers Luffy from the trash, then Luffy replays another Gerd from the trash, giving you an 8K Rush attacker and more 12-cost Blockers.
Thousand Sunny transforms Pirates Docking Six. Docking Six reaches 11 cost with its own effect, then Sunny gives it the last cost it needs to become a 12-cost Blocker. The Stage is more than card draw—it enables this defensive interaction.
Franky can remove key small Characters very early. On your 3-DON!! turn, Rodo gives you a 12-cost Character immediately, enabling Franky to K.O. an opposing 2-cost before it attacks.
Do not focus only on the opponent's large Characters. Once the board is established, your many 2-cost Characters attack at 5K. Repeated small attacks force Counters from the opponent while your large Blockers make their own turn much harder.
Gum-Gum Kong Gun is strongest when you are already ahead on board. Removing two opposing targets protects that lead while your smaller Characters keep attacking. It also remains a 3K Counter for your Leader in defense.
Do not waste attacks when removal can do the job. Against Rocks, attacking a rested Character with Loki can be unnecessary if his effect already removes it. Check Loki, Robin, Franky, and Kong Gun first so more attacks can go to the opposing Leader.
Once you have enough Blockers, start attacking the opponent's hand. Brook becomes much stronger in long games: your Loki and other Blockers keep you alive while Brook gradually reduces the opponent's resources.