[fixed/closed]Keeper of the Beasts can't be activated

[Nexhro]

Describe the Bug:
Keeper of the Beasts' activated ability can't be activated, regardless of the number of creatures either player controls.

Which card did behave improperly ?
Keeper of the Beasts

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
CoRM15 mini3, duel

What exactly should be the correct behavior/interaction ?
Keeper of the Beasts' activated ability can be activated, if its controller's opponent controls more creatures than its controller.

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

Fixed, see the Keeper of Mind bug report.