Itharius' Unerring Strike (3.5e Invocation)

''Itharius, the Dark Hunter, never misses his prey. For you, his power is a guide to your enemies, perfect, never faltering.''

If applied, this invocation causes the ranged blast option of your abyssal blast to never miss. This also ignores all cover and all concealment, but for total concealment, you must still correctly guess where your target is.