Forum:Obelisk the tormentor vs shallow grave confusion

I took a look at obelisk the tormentor vs shallow grave, and I still do not understand why obelisk the tormentor is still sent to the graveyard during the end phase if he got flip summoned, the end phase effect of obelisk the tormentor is a trigger effect, so it should not be applied if it gets flip summoned after being special summoned face-down defense however it should still applied if he got flip face-up because of an attack,and/or card effect since that is not a new summoned, I am well inform that flip summoned is also a flip face-up however since it is a summoned, the trigger effect should not check if obelisk the tormentor got special summoned before being flip summoned. The only way the way mention in obleisk the tormentor vs shallow grave would work, if obelisk the tormentor end phase trigger effect is also classified as lingering-like.Supernickid (talk • contribs) 18:48, July 3, 2013 (UTC)