On to Clobberin Time.
The obvious one to try and make here is Fantastic Four.
In the old days, all the REV versions of the core four made a X00 point team depending on what ring color you used. R = 200, E = 300, V = 400. You could also swap out the E Thing for E She-Hulk, and E Invisible Girl with U Medusa for their time on the team. The dials on most of the pieces were Dreadful though. The highlights were R Invisible Girl, with her stealth and 18 Defend for only 37 points. V Human Torch with 10 move running shot, 10 attack and 3 damage (This was actually not a bad damage back then) and a 10 range. The E and V Thing weren't bad, Charge with Super Strength and 4 damage meant he was dealing a monstrous 6 damage with a heavy object.
So, after saying all that, here is a theme team using the Fantastic Four keyword.
R Invisible Girl
V Human Torch
V Logan E She Hulk
Here's one you wouldn't think of, but Brute.
R Blob (He was filler)
R She Hulk
U Titania U Mr. Fixit
Now, the one I have the most hope with is Mystical
V Black Cat
V Dr. Doom
U Enchantress LE Rachel Van Helsing.
If I really wanted to, I could do a Skrull team with the Super Skrull and some Commandos, but they aren't that good either.
The title characters in here seem to be the X-Men, so I will start with an X-Men team.
U Shadowcat U Phoenix.
Some good attacks and damage. A bit of Perplex, some RCE and Enhancement. Phoenix has her TK to get the figures out to where they can make their attacks. Beast even has end of the dial healing.
R Scorpion (Filler and a tie up piece)
V Crimson Dynamo
V Silver Samurai V Iron Man
Not a great team, but Iron Man has Running Shot, 12 movement and 10 range/2 targets with 3 damage, or use EE if the targets are clustered. Also has RCE, so if he can stand in the spot, he can get that 5 damage shot off. Crimson Dynamo has no move and attack powers, but has Super Strength and RCE so he can get an object and make it so he is a threat to focus on. SilSam and Scorpion are there to tie up with their L/C and Phasing, and in the case of SilSam, he can do a bit of damage too withi his BCF and 11 attack.
Probably the one here that stand the best chance is Martial Artists.
E Silver Samurai
LE Elektra (Nun-chuck Hand Ninja) LE Raven Darkholme
Lots of stealth (5 out of 7 figures). 3 Perplex, 3 blades, a touch of outwit and a lot of fun. Only thing to make this better would be a bit of TK (But the Martial Artist with TK was in the last set with Moondragon)