What it is
MetaMask is the most-used self-custody crypto wallet — a browser extension and mobile app where you hold your own keys. For the League, it's the bridge that connects your USDC from Coinbase into on-chain venues like Polymarket.
What you'll trade
- Self-custodied USDC, ETH, and L2 balances
- Polygon-bridged USDC for Polymarket positions
- Token swaps via MetaMask Swap or aggregators
- WalletConnect sessions into on-chain dApps
League points multiplier
MetaMask routing counts 1.0× during Season 1. It isn't a venue you trade at, but linking it lets the League follow the money trail into on-chain markets cleanly.