MGCLS view of the newly detected multiple-relic and radio halo system in MCXC J0352.4−7401. Top: MGCLS full-resolution (7.0″ × 6.8″; yellow) and filtered 25″ resolution (blue) Stokes-I intensity images. The colour scales are in square root scaling between 50−500 μJy beam⁻¹ (yellow) and 5−300 μJy beam⁻¹ (blue). Synthesised MGCLS beams are shown on the lower right, and the physical scale at the cluster redshift is shown on the upper left. The red × marks the NED cluster position, and the black cross indicates the position of a 3 mJy compact source coincident with the SE relic. Smoothed archival Chandra 0.5−7 keV contours (levels: 4, 8, 16, 30 × 10⁻⁷ counts cm⁻² s⁻¹) are overlaid in white. Bottom: in-band spectral index (left) and spectral index uncertainty (right) maps of the dashed region from the top panel, with 15″ resolution MGCLS intensity contours overlaid. Contours start at 5σ = 40 μJy beam⁻¹ and increase in factors of 4. The synthesised beam is indicated by the filled grey circle on the lower right of each panel.