Collectible Card Game Headquarters

Describe the Bug:
Helm of the Ghastlord if you cast it and use a land that deals damage for mana like Barbarian Rings in my situation (tested with Adarkar Wastes also bug) then you are not prompt to target a creature and the aura goes to stack with no target and then to graveyard.(happened in 2 different games)

Which card did behave improperly ?
Helm of the Ghastlord or Barbarian Rings and other painlands

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2014/12/20: Commanding 2014 Urzas,duel

What exactly should be the correct behavior/interaction ?
Helm of the Ghastlord

Are any other cards possibly affected by this bug ?
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Strangely enough, the bus is due to its triggered ability linked to damage, which works even before it's in play and attached to a creature.
Fixed in 1e25f74

When cast using City of Brass you aren't asked for target and it goes straight to gy.

This has been fixed and now is closed.