For theorycrafting, here is a self-updating...:

• List of Fitz's possible targets, sorted by class

Notable Mentions

• (Aggresion) Air Cover: secure tactic-centered decks from drawing tactics
• (Justice) Invisibility Gear: employ confusions on Hero form
• (Justice) Sonic Rifle: can setup for War Machine's (Hero) Float Like a Butterfly + Shoulder Cannon when its needed.
• • Can also setup an infinite confuse-lock combo with Wasp (Hero) (see more here)
• (Leadership): Voltron-based decks will apreciate searching for Comms Implant, Laser Blaster, Power Gloves and/or Reinforced Suit
• (Protection): catch your precious Electrostatic Armor, Energy Barrier, Energy Shield and Forcefield Generator. Also Stun Gun

The following heroes have searchable techs:

• Iron Man (Hero): all his 7x upgrades are tech!

• Black Widow (Hero): SHIELD TRAIT. her two most powerful gear are tech: Synth-Suit, 2x Black Widow's Gauntlet, and so is her powerful Treachery negation

• Ant Man (Hero: two of his most powerful upgrades are tech: Ant-Man's Helmet, Wrist Gauntlets

• Rocket Racoon: all his 8x gear is tech!

• Star Lord: 4 of his gear is tech

• Venom: all his weapons are tech: Multi-Gun, 2x Venom's Pistol

• War Machine: SHIELD TRAIT. 5 of his most powerful gear is tech

• SD/dr: 3 of her 4 interfaces are Tech

• Nick Fury: SHIELD TRAIT. 4 of his toys are Tech

• Winter Soldier: SHIELD TRAIT. Winter Mask and Cybernetic Arm are tech

• Black Panther Shuri: Kimoyo Beads and Spider Bites are tech

• Galaxy's Most Wanted (campaign): 4x powerful Milano mods are Tech

Be aware that Leo Fitz usually wont worth for hero cards alone; he should be built in a deck with other aspect/basic cards with tech.

• To be combined with Blade, a 1-cost ally.

At the expenses of having an slot occupied by a motionless avenger, you can ready your avenger hero. Two copies will suffice.

• Thor and Hawkeye naturally starts at 2+1 ATK and can go 4 in aggresion or pool
• Ant-Man can go high on ATK too
• Captain America, specially in Justice, can thwart for 4 with Fearless Determination, ready with his ability, then ready again with this card
• Justice Iron Man can also do similar thanks to his Arc Reactor

May initially look quite situational but since Blade is inexpensive and stays forever, this card's condition becomes online quite easily.

• Hulk can benefit too, but he is... Hulk

SIDENOTE: Honorary Avenger donation by other player opens up for any hero's usagement.

• Damage of 4 by doing what Justice aspect does better: defeating schemes
• Can be triggered on Alter-Ego, which is an apreciated rarity.
• If cleared while the intended minion is down, it can still hit the villain for some progress
• Requires a side scheme to work with. Player side schemes are here to help if villain deck dont cooperate.

I think its not a bad card, and is on par for its cost, can be stored on the field for later; yet its requisite can be too restrictive in some situations. Would add one or up to two of these (except if playing with Cable (Hero), whom deck speaks the language of side schemes)

With a single player side scheme left aside, she reaches the standard 3/2/2 stats.

Thats a small requirement to put her back in the average, but the real fireworks starts when you (and other players) can put more player side schemes in play:

• Cable is an absolute beast at that role, easily buffing her to +6 or more since there is no bonus limit!
• Maria Hill (Hero) can back her up for longer/forever with Field Agent, or even Med Team. S.H.I.E.L.D. Deputy isnt required if MH is in Hero form, but still worth to mention.

Another KEY for exploiting her potentially massive Thwarting is to focus her on hte Main Scheme instead of in side schemes that arent extremely problematic. Even a scheme with an acceleration token can be ignored as long as we can keep Jessica Jones alive and twharting.

Now seriously, I've had lots of fun with her with my average Justice Cable deck

• Its not a forced response. They can still just play as a cheap 2-cost ally
• Adds 3 rare traits for Strength in Diversity sheanigans
• • Of them all its Aerial, an enabler of powerful cards and combos
• On mid-late you can definitively get more benefit than perjuice of his response
• Its also the first foundation step towards an unortodox Leadership Thor deck with Squared Off for engagements' needs
• • As sidenote of that, they can be a target for The Bifrost
• Their response is quite interesting in multiplayer with Rapid Response: block other player's villain with them, get them back and ready your hero to block with yourself or the birds, another villain's attack. If the villain first activated with you, the upcoming minion wont attack you.

Thor and Tigra usually benefits the more, from having a minion engaged

Now that you know this information, go and let your creativity loose on your next deck with Hugin & Munin!