Breath of the Sleeper AKA Morning Breath: for my money this and its clue getting counterpart Eyes of the Dreamer are now the best attack and gather spell assets in the game.
When using them and paying the maximum amount of charges the hit rate to find a match is quite high. Obviously this varies a lot depending on the state of your draw bag, but in my experience it is higher than 50%. Filling the bag with blesses or curses will increase the chance of finding a match greatly.
Unless I’m mistaken, even once the 9 charges are depleted from them, they can still continue to be used to at least give your mystic a chance to fight or investigate using their intellect.
Having 9 charges on them also means that these are very useful in combination with Spectral Shield, giving low health mystics an easy way to stay in the game
Notably Jacqueline Fine can supercharge her chances of getting a match on this by drawing an additional 2 tokens