The toroidal component of the magnetic and ideal electric field, B^ϕ and E^ϕ, for an MHD monster shock initiated through the launching of A waves from the stellar boundary. The outline of mesh blocks is shown in white, with each block containing 16 radial cells and 8 angular cells. The plotted simulation has domain r/R_NS ∈ [1, 10] and θ ∈ [0, π] with a base grid of 2048 × 512 cells and three levels of mesh refinement for a maximum effective resolution of 16384 × 4096.