[fixed/clo]Gleam of Authority owner can activate on opp.crit

[Aswan jaguar]

Describe the Bug:
AI did a bad play enchanting with Gleam of Authority my creature but the bug is that then AI tried to force me to tap the creature by activating the ability and if I cancelled by not paying the cost AI kept trying 3,4 times at least until I had enough and decided to play along.(Having in mind that and that AI enchanted a creature that couldn't block,tap it not to attack and at the same time boost one of it's creatures,it was rather an intelligent move to enchant one of my creatures after all).

Which card did behave improperly ?
Gleam of Authority

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2015/12/25: Battle For Zendikar,duel

What exactly should be the correct behavior/interaction ?
Gleam of Authority if enchanted to opponent's creature owner of Gleam of Authority can't activate it.Only enchanted creatures owner can as activated ability of Gleam of Authority is transferred to creature - "enchanted creature has" clause.

Are any other cards possibly affected by this bug ?
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[BAgate]

As if that wasn't bad enough, while the AI was trying to do that, he used his Mirror Entity to make all his creatures 0/0.

[Korath]

The usual tourniquet applied in a45deba - you can only activate if you control both the Aura and the creature it's attached to.