It is soo rare to get covers for limited characters every year that throwing a HfH offer on them has no incentive other that waste money with a character you would not play ever.
So what do you think about a permanent boost on them to add some flavour to the game?
I like it. There’s really no incentive to play as any of them otherwise, and it’s a crying shame, especially in Taskmaster’s case - his customizable powers are a unique game mechanic that’s gone almost entirely to waste.
Good news…if you pay $25, you can get 6 covers for Taskmaster (and 60K ISO) in the latest HfH bundle. But only for the next two days.
Phase 1 - Offer a limited character
Phase 2 - Charge $$ for the only possible way to make him go up levels.
Phase 3 - Profit!
Step 2.5 Skip offer in favor of TP and hand sanitizer, that stuff is expensive.
Why do you think he wears gloves all the time?
Do you really want to see permaboosted Bagman in, like, every single PvP?
If you think Overclocked is bad, just wait until you see Snarky Remarks in every fight!
At the very minimum, Devil Dinosaur & Taskmaster should be boosted for the entire Anniversary week, Howard should be boosted for his PVE and Spider-Ham should be boosted for his. It’s kind of insane to me that this isn’t already the default for these Limited characters.
You might as well just add a *.
Have you ever played in pvp or pve a boosted 2* when you know even a good 3* can 2 shot kill him?
I am afraid of no ghosts! 
But seriously, why even have limited characters to just occupy a slot since day one to the last day in your game? Releasing a HfH bundle for Real life money for this characters is almost a bad joke / mock / insult. 
Captain Pedantic would say they do that every single run of Combined Arms. 