Multi-collateral warp routes allow making tokens without mint/burn functionality bridgeable across chains.

A good example of this would be deploying a USDT warp route between Ethereum, Base and your chain (which we'll call Infinity chain). As the warp route contract will likely have minting rights over USDT on Infinity, USDT will need to be locked/unlocked when bridging to or from Ethereum or Base.

In the case where a user bridges 1000 USDT from Ethereum to your chain, they will not be able to bridge 1000 USDT to Base unless that amount has previously been bridged to Base and locked in the Base warp route contract.

Before being able to enable multi-collateral warp routes on Superbridge we require that you are actively managing liquidity on the chains where the warp route is of type EvmHypCollateral.