
With so much time having gone by since the release of this card, I thought it might be time for a re-appraisal. While I still think it's fairly weak, as far as signature cards go, the card pool has expanded vastly since the Core Set, giving this card a total of 20 spells to work with (including her weakness). Let's take a look at how likely it is to play six spells over the course of a game nowadays.
Very beneficial to Agnes is the fact that many newer spell events are fast. For instance, Aggy gets a free draw from Hypnotic Gaze, Ward of Protection, Mind Wipe, Counterspell and Time Warp. All of these are perfectly reasonable includes for Agnes, so her odds of getting a double benefit from them are good. In the same vein, many spell events take actions that you might be taking anyway, giving you another double benefit situation with her necklace out. These include Astral Travel, Bind Monster, Blinding Light and Storm of Spirits. Uncage the Soul isn't a spell, but it does put spells into play very cheaply for Agnes, so in a way it triggers the amulet. Getting a free draw for playing spells even makes some sub-par includes like Alchemical Transmutation and Recharge more attractive, since she gets the draw even if the spell fails. Running a doom-heavy deck? Moonlight Ritual is a spell! Free draws!
With the variety of spells necessary for this to be decent in place, we come to the other problem with the card: that darn accessory slot. While Holy Rosary is obviously terrific for Agnes, she has other options to bring her up to six at level 0; specifically David Renfield. I'm not saying she shouldn't run the Rosary; it's incredible on her. But I do think the Heirloom has enough triggers in the game now that it is competitive for the slot, and makes Relic Hunter a very tempting include for her.
Are all the problems solved? Is it worth playing late? Is it as good as Zoey's Cross? Absolutely not, but I think it's a much harder decision now whether to mulligan it out of the starting hand or play it first turn over Rosary. In a deck that's built around having spells to play, which is totally realistic now, it would be a very powerful card.
Spells continue to be released, and they can only make this more powerful.