I thought of another question after posting; is Ting-Lu then affected by its own Vessel of Ruin after losing it to Mold Breaker?
Mud Shot from same Ting-Lu into Skeledirge
Seems the answer is no, the Vessel of Ruin effect checks which Pokemon the effect is attached to, and not for instances of "Vessel of Ruin" the Ability.
Mud Shot from same Ting-Lu into Skeledirge
Code:
normally
364-272 92
186-82 104
Mold Breaker Entrainment'd away
364-262 102
170-24 crit
364-262 102