So, decided to rez this topic (ironic on all fronts, im aware), since Kambi is going through some rough times.
Since the Midwinter Update, ive moved away from my QG deck - since the Queensguard havent been buffed like most other bronzes, spending a whole match slowly strengthening your "QG squad" usually leads to defeat, specially since even if the enemy isnt expecting Kambi, they will try to go 2-0 on you, to avoid a R3 where you have your whole QG squad and he has 1/2 cards.
Note however QG still works sometimes. You can easily get 4-6 Queensguards (with Dopplers, Operator, silver lock to steal your enemy's QG he obtained from Operator,...) + Cerys, for an impressive 35-55 pts in 1 card. The hard part is getting there.
Back to Kambi - he now provides 20pts to opponent, and he'll probably still have 1 or 2 cards in hand, unless you got some sweet CA. And Hemdall blows up the entire board (Ambushes included!), however there are ways to get "Hemdall carryover", and im currently exploring those, will present them when im satisfied, but feel free to share your strategies.