Yeah, the change is real, you cannot stack E.Dysk with E.Dosis anymore. As for where this information comes from... I can't say that here on OF, but if you know, you know. But honestly, what a bummer. The most exiting thing healers got going into DT, a small potency gain DoT, got nuked before players had a chance to play with it. No fun allowed. Wait for the full release they said.