couple of suggestions here tony, doom rocks, although good, i honestly think is not that great an assist. a lot of other projectiles outright beat it and i think hidden missiles is just a better assist in general although its a lot slower to start up and is built more around a campy team.
i dont like him as an anchor either because doom lacks mobility, even with lv3 xfactor, what you can do instead is start doom on point and just qcb+l/qcf+l and runaway while building meter, i honestly think x23 is fast enough to burn meter, her only real disadvantage is her health.
now if you start doom you have some options for a 3rd, you can choose either another beam assist to chip with like mags/ironman or you can choose an anti air to stop them from ever getting close running something like dante's jam session/dormammu purification.
like pretty much any team, you can stick in a sentinel drones/phoenix/akuma spin kick at the end and it'd be a pretty good team not to mention they're some of the best characters with lv3 xfactor.
if you're still set on having doom for his molecular shield go ahead and run another rushdown character with teleports, namely, wesker/dante. playing yang yesterday basically shows how powerful teleport characters are. basically you call doom, then teleport immediately, then the rocks cover their overheads.
if you want to go the campy route having chris on point with hidden missiles is a really really strong team. probably even someone like deadpool/taskmaster.
seriously im giving you like every option for every character here, the only characters that i feel are just not that good, is thor, because a)i dont think he has any super armor normals b)for his weight class and mobility he doesnt really have anything to offer that sent/haggar/hulk cant do better. second is viewtiful joe, even though i play him his range is horrid and his airdashes are not fast making him even more useless.
btw, hulk/haggar/sent is honestly a great troll team if you're not facing anyone named magneto and dr.doom.
