Both modes of this card are good, but particularly the Bless consuming mode is just very silly. Healing for two every turn, on whichever investigator is in the worst shape, is game breaking. Suddenly you just don't have to care about random treacheries hitting someone for 2-3, and you can even contemplate letting someone tank a turn of repeated Attacks of Opportunity because they were full to begin with and you can heal them up after.

You don't need to fill the bag, just a few blesses will enable a lot of healing, and cards like Ancestral Token on your fighter will easily power this, or a well timed Keep Faith should be good for at least two uses of healing. You can also mess around with things like Tempt Fate to let you get access to both sides of the book, though note that the book can't be used when the bag is exactly balanced. As soon as someone draws either kind of token, though, your book is back online at the next player window.

4 xp may seem like a lot, but you don't necessarily need two copies, and you don't necessarily need to find the book in your opening hand, or even early in the game. Getting it out on turn 10 when things are starting to get dicey is still very valuable, and if you have the blesses ready to go you can heal for 2 immediately and then again the first time someone has a skill test in the mythos phase. That's plenty to get someone out of danger.

On its face, this card is inefficient at gathering resources: you have to play it, then use it four times to empty it out. Subtracting the initial investment of one resource, you spent five actions to net seven resources. It's like you played Emergency Cache and then took four Gain Resource actions; most rogue decks have better ways to gain money.

What you need for this to be good is some kind of strong synergy. In the legacy cardpool, this could mean being Alessandra Zorzi, and using this to launder her free Parley actions into money, or it could be used to help out Haste and/or Captivating Performance for having the requisite number of same/different actions. In the future, perhaps there will be a Renown archetype that this can fit into; just getting one additional Renown counter on this wouldn't necessarily be that exciting, but maybe there'll be some sort of payoff card that requires you to have enough renown to function. We'll see!

Seems incredibly flexible [edit: especially now it's Fast]. You could slap one down on a location to investigate it later, double-tap a four-health enemy with Shrivelling for a single action or use it with an investigation spell (maybe Sixth Sense(4) due to the lack of charges) to basically give yourself an extra investigate every turn.

An important note for new players: you can only play this after you "successfully evade". Effects that "automatically evade" an enemy like Polished Cane, Breaking and Entering, or Restrained do not involve a test on the evade effect, so you did not succeed by anything and cannot play this.

If I use Gift of Nodens to commit a skill card from the discard pile, and then resolve Grisly Totem effect, but the skill test ends up failing:

Does the skill card return to my hand, or is it placed at the bottom of the deck?