Apothecary Helbrim is an oxymoron. It’s a slow value card designed for a fast aggressive deck. Poisons are designed to deal lots of damage in a short amount of time. A 4 mana 3/2 that adds cards to your hand is a slow card designed to give you an advantage in longer games.
Rogue doesn’t have many defensive tools, so long games increase the chance they develop a big board you can’t clear. What Rogue does best right now is draw cards, and deal damage. If you look at Poison Rogue on HSReplay, that’s exactly what they do.
Every card in the deck is either drawing cards, dealing damage, or being the only 3 defensive cards Rogue has. So, where would Helbrim fit in? Generating cards is almost like drawing cards, but he costs too much, and is too random.
Think of the great card draw Rogue has. 1 mana draw 4, 2 mana draw 2, cutting class possibly costing 0 drawing 2. Now, Helbrim is a 4 mana draw 2 random cards. That you can’t discount with preparation/blackwater cutlass. And you don’t get the 2nd card til a 3/2 dies.
To solve the random part, he could say “Battlecry: Discover a poison from your deck, add a copy to your hand. Deathrattle: Add another copy.” Now Helbrim can hand-pick a poison you want, and not RNG give you an unusable Nitroboost or your 3rd Silverleaf Poison with a full hand. You could argue this would be too consistent, since Poison Rogue only runs 3 poisons, but he’s still not that powerful. You could also draw him after you draw all your poisons, but if you’ve drawn all your poisons, you can’t be hurting for more that hard, right?
He would probably still need a mana buff to be competitive, but that’s kinda obvious. It’s hard to discuss mana cost buffs, because you just go “I want weak card cheaper,” and people go “Yeah,” or “Nah.” Not much of a discussion, eh?
So, how would you buff Helbrim? Would he be playable with his current effect, but at 3 mana? Would he find play at 4 mana if you can choose the poison? Do you think he’d need both buffs, or would he become too powerful? Or do you disagree with buffing him at all?