So uhm, first post here and i take the opportunity to take you guys through my fabulous journey into "breaking" the tavern brawl this morning.
 
So i get on that six-shooter tavern brawl with a mage decklist ( just cause i need them gold from quest ya know :D ) and on my second or third game,
 
I play Research Project my opponent had then 10 cards in hand and draws for the turn, but no deck refill.... He then plays Barnes, no minion comes up from the battlecry. so it aint a visual bug. start my turn, play another Research Project, my opponent fatigues for 1+2, i can then OTK him with my 0 costs spells due to my 4 copies of Sorcerer's Apprentice.
Fun fact, the tavern brawl clearly says; Make a six-card deck and duel! Don't worry - when you're out of cards you get a free reload!.
Can anyone recall to this happening to them or no one had the cojones to mill?
 

I've been looking around my logs to look for areas where I can improve my dps. One of the things I've noticed (in game) is that I tend to pop shadow dance too early ( not pooling enough) . However in my logs I also noticed that I'm also capping energy and combo points a lot. What is an acceptable amount of resource waste for sub? Is there anything else I've not noticed in my logs that might help me improve my dps. 
I've been trying to reduce the amount of backstabs I cast during encounters which helped my dps quite a bit ( noticed a lot of the higher parsing sub rogues had less than half my bs casts)
 
https://www.warcraftlogs.com/rankings/character/21629426/latest/

I need ur help, guys. Want to improve my dmg.
https://www.warcraftlogs.com/reports/2FN3XmCMJRaVq6nr#type=resources&source=12&start=7589608&end=8012093
What do u think about this dps, an energy caping from time to time. 

So with combat being the dominant spec most of this tier, I have been sort of neglecting assassination(still hop into sub every now and then) and because of that I have come across a problem with trying to pick it back up: When should I pool energy, how many CP and Anticipation charges should I be at before casting an envenom, and the biggest thing is when should I stop pooling energy/CP and start spamming mutilate and envenom whenever possible?