This will be loot-able from any Greater Champion/Boss.
This Ring will grant you an additional 12+ STR, but also gives you the passive ability "Bash" with a slightly increased Bash chance. It will only be the level 1 Bash chance % you get, though. By increased hit chance I mean like 50 % more than the original level 1 Bash chance. So if the default Level 1 Bash's hit chance is 3 %, it will be 4,5%)
As a last resort in being over-powered the skill also grant you a minor improved HP generation bonus. Your HP gen. will be incresed by 10 %.