I think that, indeed, clontrooper5's list is invicible, and that it currently isn't and probable will never be countered ! Like Darth Vader said in Episode V : you are beaten, it is useless to resist.

Just kidding ! I think that if Clontrooper5 proved something is that he is one hell of a player to be able to pace himself with such short range ships and that the Raiders aren't half bad as many people thought If we analyse Clon's list very coldly, we can see that it has a major comfort zone but several aspects that it is possible to exploit :

1) It hasn't got a great squadron defense. Sure, he has 3 TIE Fighters to tie things up and the Raider's 2 AS dice isn't too bad, but throwing 3 to 4 squadrons on 1 Raider will crack its shields open with relative ease.

2) It is vulnerable to large attack pools with accuracies, due to mainly having small ships that rely on their single Brace which is heavily shut down.

3) It is suprisingly flimsy at medium-clos range : The Raiders' Evade tokens won't save it at close medium, which is also where attack pools will be larger. But at long range, it can take a beating.

4) It is vulnerable in the squadron phase : Clon's activation advantage banks on being able to wait until all ships have been activated to set up his next turn activation without being shot at. Rogues and squadrons that are able to respond to that by being able to attack in the squadron phase are something he will probably want to avoid.

5) It is deceptively defensive. Short range dice have a surprising defensive value, while they require more work (initiative, activation advantage, etc) to be used offensively. I'm sure clon's list loves nothing more than other short range lists !

6) It will have trouble catchin up with fast fleets. Aside from Demo, it will have trouble applying damage on elusive fleets that kite and swirl around. So, if Demo is target painted and killed, the adversary can just focus on not dying.

Not saying this to diminish any accomplisment by Clon's on his well deserved victory !