Eutectic high-entropy alloys (EHEAs) represent attractive candidate materials for overcoming the strength-ductility trade-off, which can be enhanced through the directional alignment of the lamellar structure with the loading direction. Here, we put forward a new route to optimize the strength-ductility synergy along all directions. We convert the initially lamellar structure into a dual-phase structure comprised of equiaxed grains. The localized softening resistance of the achieved microstructure avoids necking, and the intrinsic microcrack-arresting mechanism effectively improves the fracture resistance. The yield strength increases from 680 MPa to 1200 MPa without sacrificing any ductility. This work provides a pathway for strengthening dual-phase alloys with homogeneous microstructure design while retaining high ductility.