Movie S5.

Impact in a magnetic metamaterial with attractive magnets (Q=1) and elliptical pores a₀=0.17b₀ and w₀=0.14L₀. The free-falling of a weight hung by the metamaterials is triggered by a customized platform at time t =0 ms. The vibration decays rapidly, with a decay time of about 0.2 s. Elasto-magnetic metamaterials absorbed most of the impact energy via the phase transitions, only returning a small part to the mass for vibrations.