[fixed]Helm of Obedience (see last post)

[BAgate]

Describe the Bug:
When Helm of Obedience is used and a creature card with X in its casting cost is revealed it is put into play as if X was the X used for the helm.

Which card did behave improperly ?
Helm of Obedience

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2015/3/25: Fate Reforged,duel

What exactly should be the correct behavior/interaction ?
X should be 0

Are any other cards possibly affected by this bug ?
-

[Gargaroz]

Fixed in bd4db58

[BAgate]

This is fixed, but x can be zero (it shouldn't be able to be).

[Korath]

To clarify, it's a different X than in the original report - that was about the in, say, Ivy Elemental's casting cost, while the one that shouldn't be zero is the in Helm of Obedience's activation cost.

[Gargaroz]

Fixed in 4c51f90

[Korath]

Currently in dev (6d9017f) this activates to do nothing at all: you click on it, don't get charged mana, don't tap the Helm, don't get prompted for a target, do get a orange activation card on the stack, and don't have anything happen at resolution.

[Aswan jaguar]

Fixed in commit 7610118a.