I've always felt the spell once per day invocations ('Bewitching Whispers', 'Dreadful Word', 'Minions of Chaos', 'Mire the Mind', 'Sculptor of Flesh', 'Sign of Ill Omen', and 'Thief of Five Fates') are all very weak. A single free casting of a single spell doesn't feel worthwhile, and many of...