Honestly, other Source abilities were just more useful than bless imo. Not so much in that they were flashier, just more useful, especially the racial ones. Three off of the top of my head are Red Prince stripping away magic armor from a target, essentially setting up massive mage turns, Ifan could summon his wolf (and with a later Grab bag buff it to be the most OP summon that even outperformed the incarnate who was my mainstay), and Fane could just straight up grant extra turns. Bless didn't fail because it lacked flashiness, it looked really nice, it failed cause of its costs and the fact that there were better tactical options at almost all points in the game, and its use ended up being to cure some pigs and thats it.
