Does anyone know if Invocation is triggered ONLY on successful counterspell interrupt? I'm going to assume that neither Imp. CS (without hitting a cast) nor Impact (interrupting mid-cast) will trigger the effect, but what about Blood Elves' Arcane Torrent? Against other players, it is a silence (which I suppose may not be considered an interrupt, even if it stops a spell mid-cast), but the tooltip claims that it can interrupt NPCs. So will AT trigger Invocation on NPCs only, or against players too? Or maybe not at all! If that is the case, I don't see why they didn't just replace interrupt with Counterspell in the tooltip. Anyone who has tested this talent, I appreciate your feedback. Thanks.