These were observed mostly on v11039 under Covenant 1 restrictions, but maybe 1/10 of the data comes from v10996 (leading to overrepresentation of bone dog's favor events), and a few came from v11672.

ring 3:
33	copy five times
24	lend unit/spell
20	spikedriver colony
20	dante
19	calcified ember --> excavated ember
18	glowing brands
6	hope for peace

20	health/gold for artifact
12	random consumable cards (ye olde bone dog's favor)
10	trap door / pulley claw
9	health for gold (and pickpocket chest)
8	health --> health-related upgrades
7	history of the world
7	three books
7	heaven's gold
7	bone dog's favor
6	three railspikes
6	penance yard
6	minor/major refraction
6	spell/monster railspike
5	purge to get a card
4	bone rattler/shine

	
ring 5:
12	calcified ember --> excavated ember

11	health/gold for artifact
7	random consumable cards (ye olde bone dog's favor)
3	trap door / pulley claw
2	health for gold (and pickpocket chest)
15	health --> health-related upgrades
5	history of the world
7	three books
9	heaven's gold
3	bone dog's favor
3	three railspikes
9	penance yard
8	minor/major refraction
4	spell/monster railspike
2	purge to get a card
2	bone rattler/shine

	
ring 6:
6	health/gold for artifact
9	random consumable cards (ye olde bone dog's favor)
14	trap door / pulley claw
5	health for gold (and pickpocket chest)
7	health --> health-related upgrades
7	history of the world
3	three books
12	heaven's gold
5	bone dog's favor
3	three railspikes
8	penance yard
8	minor/major refraction
8	spell/monster railspike
8	purge to get a card
3	bone rattler/shine
	

ring 7:
8	health/gold for artifact
7	random consumable cards (ye olde bone dog's favor)
10	trap door / pulley claw
6	health for gold (and pickpocket chest)
13	health --> health-related upgrades
11	history of the world
6	three books
8	heaven's gold
2	bone dog's favor
3	three railspikes
14	penance yard
7	minor/major refraction
10	spell/monster railspike
7	purge to get a card
7	bone rattler/shine