Mantis shrimp, a marine crustacean, can produce cavitation events by striking hard shells, stunning and potentially killing prey and competitors. In territorial combat with one another, these impacts are received on their protective tail plate (i.e., telson) which has pronounced ridges and troughs. Thus, a cavitation bubble is nucleated and subsequently collapses onto the surface of the telson. Non-fighting mantis shrimp species tend to have a smooth telson. Previous finite element studies found corrugations in the telson lead to a higher stiffness under static loads compared to flatter telsons [Yaraghi et al. 2019 ]. Here, we focus on the interaction of a telson with a collapsing bubble to model the cavitation-induced loads during mantis shrimp fighting. The objective is to understand whether fighting species have evolved cavitation-shielding telson morphology. We hypothesize that undulations on the telson reduce the peak surface pressure from cavitation collapse. We numerically simulate an inertial bubble collapse near Neogonodactylus bredini telson and quantify the load on the telson. We solve compressible Navier-Stokes equations using the Multi-Component Flow Code [Wilfong et al. 2025], an open-source Eulerian solver with a six-equation multiphase model. Telson CT scans of fighting and non-fighting species are simulated using an immersed boundary method. We create comparative cases by simplifying the telson geometry, separating dominant wave modes of the structure into distinct cases. Simulations are compared with laser induced cavitation experiments. At the meeting, we will report that waviness of the fighting species telson dampens the effect of the water hammer from inertial bubble collapse, reducing the peak pressure present at the surface of the telson. It is found that wavy structures split the initial bubble into smaller bubbles prior to collapse, and hence reduce the maximum surface pressure upon jet impingement.