Likely related spells:
37429 5min dureation, periodic trigger, 200ms, triggers 37433
37430 same, except can be used while stunned
37433 AoE TARGET_IN_FRONT_OF_CASTER - has effect knockback and damage
37431 ScriptEffect, self cast, 3s casting time
42581 5 min duration, periodic trigger, 200ms, triggers 42584 (remark other visual than 37429)
42582 same spell..
42584 AoE TARGET_IN_FRONT_OF_CASTER - has knockback effect
******* also triggers 42835 on self
42835 AoE TARGET_IN_FRONT_OF_CASTER - damage effect
I am pretty sure, that there was a fix for one of the knockback or dmg spells to ignore enemies in water recently, but I cannot find it