NEW (as feedback in comment corrected me, thank you): So, I've been playing this with Kōhaku. Read the Signs will get you a 8 base check. In a 2-shroud location this should give you 3 bless tokens average in Normal mode.

If you add some stat boost (Gabriel Carillo, Holy Rosary, St. Hubert Key...) you can get to 9 or 10 base check. If you fetch a bless token with Tome of the Living Dead you get to a 11-12 base check. You may want to add even a skill to get higher numbers.

This card should always give you 5 bless tokens in the right setup for 0 cost and a slot in your deck (2 if you run 2 copies). It is fun and cheap. Maybe there are more reliable ways to add bless tokens to the chaos bag, but if you plan to have a very high base check in your deck this is worth the slot. Kōhaku can play this (and should, since he is the prime user of Spectral Razor (2) and Read the Signs (2)), Sister Mary can enjoy it since she will gladly run Spectral Razor or Cyclopean Hammer, Lily is more of the same...

OLD (I dind't read well the limitation of 5 bless tokens maximum): So, I've been playing this with Kōhaku. Read the Signs will get you a 8 base check. In a 2-shroud location this should give you 3-4 bless tokens average in Normal mode.

If you add some stat boost (Gabriel Carillo, Holy Rosary, St. Hubert Key...) you can get to 9 or 10 base check. If you fetch a bless token with Tome of the Living Dead you get to a 11-12 base check. You may want to add even a skill to get higher numbers.

I've seen this card giving me 6-8 bless tokens. It is fun. Maybe there are over more reliable ways to add bless tokens to the chaos bag, but if you plan to have a very high base check in your deck this is worth the slot.