Hearthpwn

Regarding The Black Knight (or any targeted battlecry) ... Both battlecries will use the same data so if you have to pick a target (like do 1 damage) it will do one damage to the target you picked, then run the text again - and do one damage again to the target you already picked. But if the Text says 'do 1 damage to a random minion' then it will pick a random minion and do one damage, then it will run the text again and pick a new random minion to damage.

Because you're effectively saying take control of this target twice.

Think about it, how will acidic swamp ooze destroy a weapon that isn't in play.

http://www.youtube.com/watch?v=c6aja40HL9s 

This is the video of all possible battlecry synergies. Thanks to CapnKrunch for making it.