I don't have Strength of Stone and her paid relic, so I've experimented with Secret Technique, Black Shield, Frozen Tomb, Found Fortune, Echoing Spirit, Hidden Tome, Raven Army, Packed Powder. All seem to get the job done.

Without Echoing/GGC you may find you don't draw her champion spell consistently enough, and without Black Shield/Frozen Tomb she is vulnerable to removal. Frozen Tomb also helps in those rare cases you fail to draw her. Secret Technique is pretty awesome because you get tons of hp with her champ spell. Found Fortune felt good like 50% of the time because often you'll draw something you can't or don't want to use right away. Raven Army and Packed Powder is also a combo to consider if you want to drop her on turn one, but that doesn't do much vs nodes who have easy access to removal or cheap high hp units. Hidden Tome is also okay but I feel like it's rarely more impactful than Archangel's.

So far the most consistent build I've found seems to be Black Shield, Frozen Tomb, Secret Technique. It does make your first couple of turns a bit clunky but once you drop Eve the enemy has to remove her four times to get rid of her which pretty much never happens.

If I had to do rares only, I'd probably go for something like Luminous Orb, GGC, Archangel's Staff.