Rolling circle amplification (RCA) is a powerful isothermal nucleic acid amplification technique prized for its robustness and simplicity. However, conventional RCA-based detection is fundamentally limited by the stoichiometry of padlock probe ligation, wherein each target molecule ideally yields only one circular template. Existing strategies to improve ligation efficiency often sacrifice key benefits of RCA or focus on specificity rather than catalytic turnover. Herein, we developed catalytic