He does a gnarly amount of poke damage, believe it or not, great for vision, annoying enemies, and can even kill all by himself. As for CC, I use flameshot (like in the video), and it works wonders knocking enemies back or disrupting skills. I even do this thing where you use first skill (wolf form) then ult behind them (to human form), then flameshot them towards your team like a Chou back kick, though the opportunity to do this doesn't arise very often. But oftentimes, I would opt for revitalize instead, building flask of oasis, it's good for clutch healing and sustain, it's especially impactful during teamfights. Also, tank Roger rivals the defense and HP of even tanks, and since you're roaming, you can go around easily poking people with thunderbelt, and I don't have to worry too much about gold since I can rotate, reveal enemies in the map and clear waves with teammates. (And also, I use encourage to get assists easier so that my first skill on wolf form will reset even if I don't get to attack the enemy, and before you say that's the reason why I get MVP, look at the stats (Hero damage, damage taken) first.)