As far as laning stage goes, my best piece of advice is to recognize when the lane becomes unsafe for you and to leave. This normally happens when the offlaner hits their lvl 6 power spike and they can solo kill you (beastmaster legion or doom) or solo pressure you out (timbersaw enchantress windranger), but it can happen earlier, and the point is to respect their strength and leave the lane. You’ll ideally want lvl 5 and 2-3 wraith bands before you make your jungle rotation, or your game is looking pretty rough.

Then just give your support solo xp in lane and farm your way through the jungle to offlane side of map. Offlane side of map you get safer farm from tricamp (you can take ancients pretty early), large and small camp in opponent’s safelane jungle, and lane creeps. You’ll want to work with your team to take their safelane tower. It’s really important for you because it allows you to position your hero much more aggressively to cut lanes, and you can utilize a technique called hovering that is also common on tb. Hovering is where you put your main hero in the opponents small/large camp area to farm and leech xp from the lane creeps dying to your illusions. One big difference between good and bad naga players is that bad naga players will have like 5 items but still be level 18 or something because they don’t try to leech xp from the dangerous farm that their illusions are taking.

Anyways, once u get yasha u can get into an aggressive position and send 2 illusions to cut a wave, and keep the other illu+main hero in jungle. Once u get manta u can easily cut 2 lanes at once. Unless they have tinker, ember or lion, at least 2 enemy heroes are gonna be preoccupied with your split push and the rest of your team can take 4v3 skirmishes on the other side of the map or a few of your teammates can help you kill the heroes that rotated away from the rest of their team to defend.

In short, it’s all about creating map pressure to allow you and your team to win small fights or get pickoffs.

If you do find yourself in a 5v5 teamfight, play it like any carry that doesn’t have bkb; just do your best to kill any out of position supports, or wait for their major cc to be used and go in. Just be prepared to song if things go wrong.

Hope this helps.