Probably worse than most thanos ongoing builds, which are probably worse than thanos deathwave decks. However, if you want to play dazzler, I put her in this thanos shell, and I feel she consistently is contributing to winning games. I feel this may be her strongest home, just cuz the deck itself is strong, not cuz this is some new broken discovery
Valk is a consideration as top end (over spectrum probably, maybe iron man?). Klaw might be a consideration too, same for Dr. Doom.
M'baku can be any 1 drop, like iceman or nightcrawler. You have enough stones for lockjaw cycles, so maybe you can add more top end.
How to play:
Dazzler is 10 power, and with good support can win 1 lane, with you can stack iron ma to beat shuri red skull
Ant man and Mojo in the same lane low key is super strong if opponent fills, they can be secondary lane winners after blue marvel/ka-zar/spectrum buffs. Iron man can help win a lane w/ just one of them as well.
So Dazzler, Antman+Mojo, or Iron Man+Antman/Iron Man + Mojo, or Iron Man+High Costs, are typical lane winners
Squirrel girl is only good on later turns since you typically want to lockjaw if you have him, and an open lane is important. However squirrel girl is still crucial for Dazzler consistency. IMO for m'baku. I like to hold him and play him as the final lockjaw play to maximize chances he jumps out at the end
Armor can protect some stones, but realistically you lose to killmonger. Otherwise you can protect dazzler but no one expects her to get to 10 tbh
Rest of the deck is pretty explanatory, blue marvel and kazar for buffs, then spectrum for buffs too. She's better as a lockjaw pull than a t6 play, but you can play her on 6 if you don't have dazzler
Thanos is there for the stones, there's almost no real use cases to play him. He's nice getting fished out of lockjaw tho