3 Iron Fist teams:*
3* Fist + 3* Panther, Fist purple fuels Panther’s black. Enhanced with Fist’s strikes from green and Panther’s strikes from yellow. Fist passive. Fist @ 3/5/5, Panther @ 5/3/5.
3* Fist + 3* Cage, Fist purple fuels Cage’s black (Cage spec @ 3 red, 5 yellow, 5 black). Cage passive protect, Fist passive attack tile. Fist @ 3/5/5, Cage @ 5/3/5.
3* Fist + 3* Cyclops, Fist purple fuels Cyclops’ black nuke. Cyc red also does a ton of damage at 5 covers. Fist @ 3/5/5, Cyclops @ 5/3/5.
*** As you can see, Fist is one of the best 3* around as his cheap accelerator fuels some great 3* black powers. He’s also a bit of a defensive deterrent (pvp) as his passive attack tile chews up HP every turn.
3 IM40 teams: (you absolutely need to respec your IM40 to either 3/5/5, or 5/3/5. 5 in yellow is a game changer. IM40 is the best 3 battery and you’re not using him optimally at 5/5/3.)**
3* IM40 + 3* Cap, IM40’s yellow fuels all sorts of shield flying shenanigans. Great team for stuns and dishing out damage.
3* IM40 + 3* R&G, IM40’s yellow fuels R&G’s blue for strikes and greens for board shake. R&G @ 3/5/5, IM40 @ 5/3/5.
3* IM40 + 3* Cyclops, IM40’s yellow fuels Cyclops Red. IM40 @ 3/5/5, Cyclops @ 5/3/5.
3* IM40 + 3* Mags, IM40’s yellow fuels both Magneto’s Red * Blue. IM40 @ 5/3/5 or 3/5/5, Magneto @ 3/5/5.
Others:
You don’t list 3* Storm, but she has some great pairings:
3* Storm, 3* KK, 3* Hulk - a three person team, but creates a somewhat slow moving “winfinite” combo. Great for some boss battles, like Galactus. Storm @ 5/5/3, KK @ 5/5/3, Hulk @ 3/5/5. Idea here is Storm’s green will be your primary power. Her green costs 10ap, but will bring back 14 random ap with each cast. Learn to maximize KK’s purple to create green matches (if you select a blue tile for her purple power to turn it green, 5 other random basic blue tiles will also change to green). Hulk is there to soak up damage and trigger his passive black flooding the board with more greens. Storm’s yellow will clear out the team up tiles helping KK’s purple find better matches. Stay away from Storm’s black as you cannot convert special tiles into greens. Hulk’s red is situational, be aware of the green drain and team damage.
3* Storm, 3* Rags:
Similar to above, Rags’ red fuels his blue, which creates charged green tiles for Storm. I haven’t used this much as I never liked Rags, but it’s workable.
3* Patch, 3* Loki (not listed):
Patch @ 5/3/5, Loki @ 5/3/5. A little slow as you will need 9 green and 11 black to get this going. Patch’s green at 5 creates 6 strikes for each team, Loki’s black at 5 then changes all enemy strikes into friendly protects.
3* Witch, 3* DP
Witch passive blue fuels DP’s whales.