By leveraging a state-of-the-art convection-permitting regional refinement model (SCREAM), we have successfully captured the evolution of the infamous Amazon squall line event and delved into its developing mechanisms. Long-last questions are answered including the drivers causing its sudden enhancement. An ensemble of pseudo-global-warming (PGW) simulations suggests that future occurrence of this event is likely to experience unexpectedly skewed intensification. While the thermodynamic warming generally creates favorable conditions, certain dynamic factors drive its temporal and spatial amplification patterns.