Version 2.0 extends the Art-Heart framework to the electromagnetic design problem of implanted cardiac devices. The heart's spiral compression geometry (Torrent-Guasp, 2001) is governed by the compression principle v proportional to 1/N. Auxiliary cardiac devices (VADs, pacemakers, wireless power systems) generate electromagnetic fields that can interfere with the heart's intrinsic spiral activation wave. This paper proposes KHDS-EM: four electromagnetic design requirements for co-implanted cardiac devices, including frequency avoidance of cardiac harmonic bands and apex field limits. Addresses Kawasaki Kazuo's concept of hi no utsuwa (悲の器) — the vessel of compassion — in the context of electromagnetic ecosystem design. Pre-registration: DOI 10.5281/zenodo.20534889. CC BY 4.0.