We show the evolution of the mass of the main progenitor of the asin/25000x halo (thick blue line) compared to 123 galaxies from Box4/uhr of the Magneticum simulations (gray lines). Of those, seven (red lines) show similar shapes of their formation history and a sudden, large increase in the virial mass, similar to our ORC candidate, within a reasonable time window given by the observations (indicated by the dashed lines).