My realizations after using "Kewl Tune" for the Nth time + Comeback Tournament Report

Hello everyone, ArcKnight here. It’s been a while since I last wrote, and I couldn’t think of a better comeback than a classic tournament report. This time, I’ll share not just the results but also the lessons I picked up along the way. I hope my experience gives you something useful to reflect on for your own games. For this run, I piloted Kewl Tune post-Blazing Dominion in an OCG locals setting. Let’s dive in.

Deck Choice

I stuck with Kewl Tune because I value its resilience against common 1-for-1 hand traps and its overall consistency. More importantly, I want to deepen my mastery of the deck — the best way to do that is to keep playing it, even through the rough patches. While it has already given me some solid wins, I still find myself whiffing at times or hesitating on which route to take, even with hand knowledge. Siding patterns also remain stressful, but that’s part of the grind.

To adapt to floodgates like Vanity’s Fiend and Masked HERO Dark Law, I added Infinite Impermanence to the main deck. Below is the list I used, with only minor side deck variations — the main and extra stayed consistent.

Tournament 1 – April 2, 2026

Deck Used: Kewl Tune

R1 vs. DoomZ – Win

R2 vs. Synchron – Win

R3 vs. Blackwing – Win

Result: 🏆 1st Place

Tournament 2 - April 9, 2026

Deck Used: Kewl Tune

R1 vs. Maliss – Loss

R2 vs. Blackwing – Loss

R3 vs. RACE Fiendsmith – Win

R4 vs. Mitsurugi Ryzeal – Win

Result: 5th Place

Insights

The biggest difference between my 1st place and 5th place runs was swapping Gravity Collapse for Solemn Warning. Both can achieve similar outcomes, but Warning felt more flexible against Mitsurugi, which mattered in the second event.

On ratios: running 2 Kewl Tune Mix and 1 Kewl Tune Clip felt fine in the first event, but by the second, I wished I had prioritized them over cards like Triple Tactics Talent, Called by the Grave, and Bystial Magnahmut. Talent looks good on paper, but in practice, opponents often burn their Mulcharmy in the draw phase, leaving it dead. Called by the Grave feels better in the side since it’s weak going second. Magnahmut was matchup-dependent and did nothing against Maliss.

Infinite Impermanence was serviceable, but I’m curious whether Synchro Emergency might be a stronger main or side option moving forward.

As for the side deck, Dark Ruler No More felt underwhelming in my locals meta. I’m leaning toward swapping it for Purulia to gain extra draw power. Ghost Sister & Spooky Dogwood was a meta call against occasional FTKs, but I’ll likely replace it with something more universally useful.

Summary

Kewl Tune remains a solid contender. My losses weren’t because the deck is weak — they came from poor decision-making and less-than-optimized deckbuilding choices. With better tuning and sharper play, I believe this deck can continue to perform well in today’s meta. Thanks for reading until the end. 'Til next article!