Bane of Doom
Deal 2 damage to a character. If that kills it, summon a random Demon.
My advice to you is to avoid Doom, if possible.
 How to get
|Bane of Doom||400||100|
|Golden Bane of Doom||1600||400|
Battlecry effects are only activated when a minion is played from the hand, and will not be activated through Bane of Doom.
This spell's first incarnation was as 'Doom' in Warcraft III, where it was the ultimate ability of the pit lord neutral hero. It would curse a target to take damage and when it died it would summon a doomguard. It was later reinvented in World of Warcraft as the infamous warlock spell 'Curse of Doom', later renamed 'Bane of Doom'. It applied a damage over time effect to a character, and each time it dealt damage had a chance to summon a Demon Guardian. While Cataclysm saw the spell deal damage every fifteen seconds, with a chance to summon an Ebon Imp who would automatically assist the warlock, the original spell had a duration of 60 seconds and dealt damage only once, at the completion of the effect, with a chance to summon a Doomguard. Unlike the Ebon Imp, the summoned Doomguard was not under the warlock's control, and would immediately attack the warlock upon spawning. The Doomguard was quite capable of killing the warlock and his allies, and had to be enslaved via the warlock's Enslave Demon spell in order to control him, although he could resist enslavement, or break free later on and begin attacking the warlock again. Ironically, in Hearthstone, the Doomguard is not one of the demons that can be summoned by Bane of Doom.