Did you try with "attack all"? Someone said this might be the problem.Tag applied: Could Not Reproduce
Testing applied: Tested Glorybringer's Exert ability for 20 turns with legal and illegal targets on the battlefield. Also tested 10 turns of a game state reproduction.
Test Results: In all instances Glorybringer's Exert ability triggered whenever there was a legal target on the battlefield.
It's Not A Bug. As the Exert ability tied to the attack must be triggered manually.Did you try with "attack all"? Someone said this might be the problem.