Just say I had Yveltal and battling Tentacruel or Gulpin or whatever Pokemon had abilities of Liquid Ooze. I battling the Pokemon until my Yveltal's HP is half or lower and using Oblivion Wing which is almost knocking the Pokemon. Will that do damage and knocking out my Yveltal? Yveltal Lv. 80 and Tentacruel Lv. 60-70.
In easy way, I ask, will Oblivion Wing, instead of recovering HP is doing damage if using on Pokemon with Liquid Ooze ability?