You might have read my take on the Taskmaster game design
And while it sucks what Playdom have now. They of course had to also make him bugged. There are 2 bugs with Taskmaster I have seen so far and I haven't even gotten him to level 9 yet!
One of them is, well I don't know to be honest. Its either a bad game design if its intentional (which would not surprise me as hes is horrible overall) or its a bug. The effect is regardless that I have found an easy way to beat him in AFK defense at least.
Taskmaster can only have 1 class at a time. Note he stays generalist and don't swap classes like Mockingbird. Instead he do gain the class bonus if attacked by them.
But this means jack shit unless its infiltrator or bruiser. If he gets attack by a scrapper he gains the scrapper bonus - 2 attacks. But if attacked by a bruiser before his turn he gains the enrage instead losing the 2 attack bonus.
He can only have 1 class during his turn as that gives him his current abilities. But there is no reason he cant keep the counter from infiltrator etc. This means that when attacking him just force him into whatever you want as is the attacker who pick his class. The player with him (or the AI) cant swap.
Also his level 9 do give the team the class bonus while great, if you keep only forcing him to have 1 class when its his turn he cant really spread around the bonuses.
For me its either really bad designed that he wont keep the bonuses. Its one thing that only the latest decides his abilities but no reason why he loses counter etc. OR its bugged...seriously I don't know with Playdom.
Ok.
Here a real bug( 100% bug) which is a classic copy paste laziness.
Playdom just took Mockingbird tooltip text and slapped it onto Taskmaster.
First of all this makes the user thinks that it works teh same as Mockingbird which is dont as she changes to the attackers counter class while Taskmaster donteven change he gains new move set and teh class bonus of the attacker.
Here here lies the other obvious issue the text says "when changing classes" but he never do change class he just gains class bonuses. And he can trigger a turn each time he gain bonus(which are lost later one) and who then don't affect his move set.
So bad UI Design just taking it and even more bad as the abilities are not the same the text don't correspond to what actually happens in the game.