Use Cerebro and Mystique to buff the power of 3-power cards.
Similar to the 2-axis variant, the main benefit of this version is Valkyrie, built to get wins for this deck. Of course the extra point of power on everything is nice too.
Wasp, Zero and Sentinel give you cheap bodies on board to benefit from your buffs. Zero is can be held for turn 6, but there are a lot of cards in the deck with middling abilities you won't mind losing. Wasp pairs with Bast or Valkyrie.
Ravonna for cost reduction on many key cards. Bast benefits those same cards and Wasp.
Scarlet Witch to remove problem locations, though Rhino is a good replacement if you don't like her randomness.
Invisible Woman protects your Cerebro/Mystique from disruption, and she gives some nice mindgames. Jeff is a strong alternative here, giving you a lot of flexibility, if you don't expect to see Enchantress or Rogue.
Shang-Chi and Iron Man help you out muscle your opponent.