The deck that did the heavy lifting for me for most of this season's Infinite climb in pool 3 including just about all of 85-100. It's a deck that requires practice and experience to play - you need to pick which lanes you're committing to and which lanes you are only maybe trying to trick the other player into over committing to. Where you might be able to steal a lane with Prof X even without Daredevil helping you know where to look. When and where to Juggernaut. When and where to Storm. When and where to Spiderman. (Spidey on turn 4 helps you Prof X or Hobgoblin; Spidey on turn 5 can hold a lane for you for turn 6).
The obvious combos are things like Storm into Jessica Jones or Juggernaut; Rescue into Professor X or Hobgoblin; Spidey into Prof X; Professor X in a lane with sunspot to get more power on turn 6 if you need it. These plays happen again and again.
Most 4 or 8 cubes are won on turn 6 by Leader or by Juggernaut keeping you ahead in the 2nd chosen lane after Storm or Prof X won you the first lane. Be aware of what likely turn 6 plays from other decks do not play nice with Leader...