Hearthpwn

What is the interaction?

Does anyone know why Brann Bronzebeard doesn't work with Echoing Ooze? By the description it should produce 3 of them however it doesn't seem to work. (my guess is since the battle cry occurs at the end of the turn it doesn't activate. however if its not intended should we expect a patch on a later date.)

The way in which Echoing Ooze activates is likely coded more similarly to cards like Ragnaros, without his effect's recurrence. So, it's probably not similar enough to other battlecries for Brann to recognize it and therefore do it twice. That could be an oversight, though, since the Ooze clearly says "battlecry".

Edit: Actually, the battlecry itself probably applies a buff to the ooze with the aforementioned effect. I assume then that the buff does not effectively stack since applying it twice still results in a single outcome. In this case, it actually may be intended (or it may be something Blizz will let by), kinda like Cabal Shadow Priest. Still, it is frustrating that it is the only minion-summoning battlecry that does not seem to work twice.

Theres a link in the gamepedia website stating that it was intended.... I think thats another word for "we dont know and we are not gonna bother."
By all means its must create more oozes.

Somebody had used this card against me today in a druid mill deck, with damn two Coldlight Oracle s... :(

Just did a test in casual VS LoE Overload Shaman...Brann Bronzebeard can be absolutely insane imho:

Before:

After: i used Brann Bronzebeard and Antique Healbot for heal myself 8+8, the next turn my opponent had to concede.

It's awesome!

Did some testing with various effects:

Targeted battlecries (Fire Elemental) do not allow you to choose a different target when they activate a second time. This makes cards like Cabal Shadow Priest pretty useless to activate twice.

Randomly targeted battlecries (Bomb Lobber) will randomly select another target when they activate a second time.

Stat-buff battlecries (Twilight Drake) will double the stats they receive as a result of their effect. I don't have The Mistcaller, so since he has a fairly unique effect, I'm unsure the same applies to the cards in your deck and your hand when you play him.

Battlecries that summon minions (Dr. Boom, of course) will summon twice as many minions as usual.

Combos do not count as battlecries for the purposes of this mechanic, except for Perdition's Blade. It works like you would expect any battlecry to, even when its combo effect is active.

Crazed Alchemist and similar cards swap their target's stats twice, basically doing nothing.

Cards like Faceless Manipulator do not activate twice since the battlecry minion is removed. I'm not sure what they'd do anyway.

Cards with activation conditions that may be altered when they are played (Mind Control Tech) must meet the same minimum conditions necessary to activate at first when they trigger a second time. For instance, a MC tech played against four minions will only steal one, but when played against 5+ minions, it will steal two, since there will still be four minions on the board even after it activates once. Some cards are useless to activate twice for this reason, like Dark Iron Skulker.

Loatheb and Saboteur will successfully increase their respective costs by ten as opposed to the usual five.

Unearthed Raptor multiplies the effects of a deathrattle by two. If you use another raptor on the first. you can have 4x the original deathrattle, and, if you had unlimited raptors, you could multiply a deathrattle infinitely.

Joust battlecries still count as battlecries (despite the fact that they're weird), and, as such, they will activate twice. The same principle applies to the discover mechanic and other battlecries that draw cards

Great investigation (or discovery, as you wish), man. Well met done.

faceless just copies minion, does not summon another.
injured blademaster and injured kvaldir kills themselves.

Good work!

Some things I'd note: 

>>Another thread reports Echoing Ooze is not creating a second clone at end of turn; something that seems like a bug to me.

>> With Dark Iron Skulker what happens if enemy has, say an undamaged Haunted Creeper in particular in play? Would it successfully kill the Creeper then the 2 spiderlings? Do you know? It might not be as useless as stated, but really only with respect to X/2 Deathrattle minions?

>>It's not mentioned here but presumably negative battlecries trigger twice as well. Self-injuring minions (Injured Kvaldir and Injured Blademaster) presumably kill themselves by doing 6 and 8 to themselves respectively, while cards like Doomguard would force you to discard 4 cards if possible.

I have not explicitly tried it, but I imagine that Dark Iron Skulker would not kill Haunted Creeper's spiderlings. Since battlecries activate before deathrattles, the Skulker's second battlecry would presumably trigger before the spiderlings are spawned. I suppose that he could still hit minions with divine shields twice, though.

Also, yes, Blademasters kill themselves, so don't play this as a priest. XD

really cool in mill rougue, sneaked a couple wins against control decks, afraid to play more tho :P

tested a few fun combos!

Mill druid - brann + aspirant --> 2 mana crystals. 

Mech mage - turn 7 brann + blastmage. Also included the new card which discovers a spell --> 2 spells with brann!

Brann + abusive sargeant

testing cheap cards so far cos dont imagine brann can survive too long on the board

Tested with Vol'Jinn... reverses the effect, so basically makes it do nothing.

He won't see a lot of competitive play. He is easily stolen by priests, and immediately becomes a high-value target that your opponent will likely want to remove/silence ASAP. This does not mean he's not incredibly fun to play, though. 

Unlike Xerotek answer, I think it's a good minion to play because it forces your opponent to react immediately. You can play him on curve, he has a decent body or you play him with another card as a combo. That means that even if you draw him in the mid/late game, he's still a really good card. Plus, in the competitive scene, how many priest are played? In the last world championship, only Thijs played a dragon priest deck.

this guy belongs in every mill deck ever from now on, 4 cards per coldlight, 16 health from a single healbot, yup....

Faceless Manipulator+This=LOL.

Nope. It says ''triggers TWICE'' not two times so it doesnt stack.

twice is good enough, you get two copies of whatever minion you target. this is like a free one to one trade plus controlling the minion, so at worst case an 8 mana mind control like effect.