Game improvements
*Buff older champs*
Placing champion specific buffs in certain matches/tiles/chapters, like in global node requirements, is only a band aid. People want their Venompools and Daredevils to be playable in ALL aspects of the game.
The only true way to fix this problem is to retool older Champs. Not necessarily overhauls like Hulkbuster, but rather minor tweaks like Gamora or Venom.