Brewmance
Portrait of Leonard Zeutschler

Hi, I'm Leonard

Full-stack developer and AI engineer from the Ruhr area, Germany — and the person behind Brewmance.

About me

By day I'm a Technical Consultant at CYBERIUM; I also co-founded 45level, where I'm Lead AI Engineer. I mostly build with Next.js, React, TypeScript and Python, and I spend a lot of time with AI agents. Nothing makes me happier than taking a cool idea and actually bringing it to life.

Why Brewmance?

I've been playing Commander for a few months now. EDHREC is my favourite place for inspiration, but scrolling through hundreds of suggestions is not the most fun way to build a deck. Swiping is. And whenever I wanted to goldfish a new list, the existing sites felt clunky.

So I built the tool I wanted myself: pick a commander and a power level, swipe through cards that fit while the deck stays playable, then test it in an Arena-style sandbox. It's free, needs no account and keeps your decks in your browser.

Found a bug or have an idea? Write to info@45level.com.

Credits & legal

  • Card data, card images and mana symbols by Scryfall, following its image guidelines.
  • Card suggestions based on data from EDHREC. Brewmance is not affiliated with EDHREC or Scryfall.
  • Tap and card type symbols from the Mana font by Andrew Gioia; Alegreya and Archivo typefaces and Phosphor icons. All under the SIL Open Font License or MIT.
  • Brewmance is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.

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