About Arbi

Your AI Rules Judge for Riftbound TCG

The Problem We’ve All Faced

You’re mid-game. The stakes are high. Someone plays a card, and suddenly there’s a debate about how it interacts with another effect on the board. Both players are certain they’re right. The rulebook is vague. Google gives you Reddit threads from six months ago that contradict each other.

Sound familiar? We’ve been there too. That frustration is exactly why Arbi exists.

What Arbi Does

Arbi is an AI-powered rules judge that gives you instant, accurate rulings on card interactions in Riftbound TCG. Ask a question in plain language—”Does Lux’s spell resolve if the target is killed in response?”—and get a clear answer with the reasoning behind it. No more pausing games to dig through forums. No more “let’s just house-rule it” compromises.

How It Works

Arbi is trained on the complete Riftbound rulebook, the official FAQ, and every single card in the game. When you ask a question, it doesn’t just pattern-match keywords—it understands the game’s mechanics, priority systems, and how effects layer and resolve. It explains its rulings step by step, so you actually learn the rules rather than just getting a yes or no.

Who This Is For

• Players who want to settle disputes quickly and keep the game moving
• Tournament organizers who need consistent rulings across tables
• New players learning how the game actually works
• Content creators who want to get interactions right on stream

Our Vision

We believe rules shouldn’t be a barrier to enjoying the game. Whether you’re playing casually with friends or competing at the highest level, you deserve quick access to accurate rulings. Arbi is here to make that happen—so you can spend less time arguing and more time playing.

Who We Are

Arbi is built by a small team of Riftbound enthusiasts and AI engineers who got tired of the same rules headaches everyone else faces. We’re players first, builders second. This project started as a tool we wanted for ourselves—and we think you’ll find it just as useful.