You can actually play this card if you use "Symbols of Duty" to trade your normal monster with Obelisk when He's in Yugi Graveyard, then use "Access Denied" to lock him from killing himself in the end phase.
Obelisk cannot be targeted by Spells while on the field though, which makes me wonder if that means Symbols of Duty would selfdestruct....and if it does, it's taking Obelisk with it before the end phase.
Symbols of Duty'll continue to be equipped to Obelisk. (And if it leaves the field, it will destroy Obelisk since the destruction effect doesn't target.) Being unable to select something as a target doesn't matter if the target's already BEEN selected.
Im not playing anymore until I see obelisk unlock event, battle city was lame af and I dueled. Till I got Yugi skill. Haven't touched the game since. I been waiting so long it's just turning me off to the game. I'm a Yu-Gi-Oh 1st generation gamer never watched GX couldn't get with it. I have everything bust obelisk... Maybe another shot at collecting more ra disciples would make me play. Online got boring too ... And if I see elegant Mai one more time smh useless .... Rather play chess now