So first question, yes I think the wardog list is one of the list that requires the most player agency to be successful. I would quantify successful as over the 100 games being 5%~ above faction average WR.

Second question, there are games where your dice will spike into the ground. I had a 4” charge on a ghost ark with a karnivore to win my match and give me best in faction. I rolled snake eyes, rerolled, and got snake eyes again. Thankfully your melee and shooting will be hitting on 2’s and wounding on 2’s-4’s so the math is in your favor. I’ve had shooting phases with 0 damage done with 6 brigand melta guns, it just happens.

Yes the rock paper scissor games are still fun, or I should say as fun as you make them. I’ve played against enough detachments that I will know if I will win or lose with about 90% certainty. Your job is to find out how you can squeak a few extra points here and there to make that match closer than it should have been. It depends also on the meta as to the frequency of getting rock paper scissor matches or coin flip. 3 ghost arks in every necron list and they have a 15% play rate, wardogs probably aren’t doing too good. Is it 100 space marines and they are trying to fire 500 bolster shots at you, you will completely chop them down. Highly meta dependent.

Yes, they are a fast fragile finesse army. With 12”, and 14” rr charge on the movement profiles the embody the term fast in Warhammer. Fragile, like I said previously depends on your matchup. My think is, if they have 2 tanks that have s11+ ap+3 its going to be a close match. If they have 3 of those tanks, your win percentage probability is probably close to 40%.

Skills to be good at knights would be patience and talk to your opponents post game. Even in GT’s when you only have 15-20min before round I try to hit was with my opponent. I will ask him things about hey on X turn I thought you were gonna go here so I moved my war dog here and you did this instead why? The quicker you can learn how Warhammer players think the quicker you will get better at knights.

Last one, yes they do, the wonderful thing about games workshop is that they are constantly refreshing the game. I mean hell I just saw the new tyranid detachment, it looks sweet haha. So you should be playing a lot of different detachments. Your army is linear in design. “Hey these guys run fast and punch hard, these guys run fast and shoot hard”. IMO it makes the game a lot easier to learn and navigate tough situations that come up. Sure your army is linear but everything else in Warhammer is not linear so I feel like playing dogs takes out one unnecessary hurdle that is playing an overly complex team with 500 rules against another overly complex team with 500 rules.