Ribs Breaker is nice as an additional Crowd Control to prevent enemies from escaping. While it does not deal much damage, it mean Ribs Breaker can be cast on targets buffed with Divine Intervention. However it does leave the Warrior to counterattack. Once cast, it has no visible animation besides the target running in place, which might make it less likely to be dispelled.
Documented changes
*Version 1.10.9 : Cooldown increased to 40s.
*Version 1.0.6 : Now deals fixed damage increasing with level instead of weapon damage.