I've used a few of these, but a couple of my personal favorites are: Armor Piercing/Energy Explosion - This works especially good on fig with mutiple targets, but a low damage. I'm thinking that the new Green Arrow will be great with this.

Double TK/Flurry/BCF - This used to be a favorite of mine. I would double TK Spiral right up to the highest point figure and go to town. I did this one time to a Vet Firelord, diced him to pieces before he could do anything.

I enjoy mind controlling a medic then healing my guy for full clix. Got to love it

I did the medic MC at my IG8 tourney, had the mind gem on le Fay and MC'd Don Black, rolled a 6 on the support roll. Other guy was not happy.

A few favorite moments

I probbed someone's breakaway roll for a game win (killed off fig on my turn).

Using Zirans incap power to push out close to 15 damage in one turn Oh you have to clear now and its my turn again?

Running my 1000 point Ring Wraith team and doing knockback, crit, incap damage... so take 3 damage plus pusing damage plus knockback damage please and now we will just do it again

perplex down there damage to zero.

or mind controlling there medic to heal your character.

Mind-controlling to attack mystic teammates

I like using ff beta ray bill, and a wild card team. High point games of coarse. Usually running throg, night crawler a Batman, cw hawkeye w/ thunderbolts, and cypher...
my team will be unseen and have 3 team abilities

I use Saturn Girl, a Batman, Awesome Andy and Colossal boy. The two giants and Saturn Girl is Wildcards and they copy the Batman TA.
The plan –
Saturn Girl does a mind control attack, and the target get moved towards the two giants and stop a square away, the giants can still attack, and not be attacked.

Batman outwits the targets defensive power and the two giants pounce on this poor character. This usually KOs the most, but Batman is still available to finish when needed.

use ant-man to shrink sharon carter so sentry and void can caryy her around without penalty.

Fav nasty tactic? Idk but recently I collected all of the Flashpoint keyword figures from the Superman set. Played a 400pt game with The Bat-Man, Wonder Woman and The Flash. Pushed Flash to click 2 revealing a 13 movement with HSS, SS and PC. Combine his PC with the Flashpoint ATA and you get 1 normal prob per turn, 3 special probs (reroll only 1 die) used once per character on their attacks and 2 theme team probs. On top of it all, Wonder Woman's special to add +1 to ally's adjacent to other ally's making close combat attacks and -1 to Opponents who are not adjacent to other opponents being targeted by close combat attacks.

I love fracking with my opponent's Mind Control figures by moving a unit next to the Mind controller. Especially a cheap figure with Stealth. then pop a smoke cloud under the figure. Keep them from MCing any of my other figures.

I like using tk and then using pulse wave on a single target

Any Colossal + Lazarus pit map. Stand in the middle to have an un-outwittable regen every turn, while turning the colossal into a mid map turret (assuming it has range of course), while at the same time it keeps any messiah wannabes off the pit.

But map tactic aside, My favorite is mastermind + stealth. There aren't that many characters that can see stealth and have outwit to remove the mastermind. And even if you're up against a stealth see-er, as long as you have high defense, you still wont easily be hit. Works best in swarm teams.