As Angel, I would almost always include this card. It is a little clunky that you have to be Angel, not Archangel to play this card,

Psylocke is required to be in your deck, as she is part of your signature kit. One she is in play, she is very easy to keep around for a long time due to her self-healing ability.

Soaring Hearts can be paid for by The Power of Flight, but if you pay for it with Avian Anatomy you will get to pick it back up into your hand immediately, in addition to drawing a card from the Angel of Life ability on your identity, so you will collect some resources that can be used to pay for whatever you select.

The downside is that you do have to pick something from your discard pile, not from your deck, so the utility may be limited if you draw this card early on.

• 2ER and remove 5 threat over the next turns
• One or two less threat per turn if playing Nightcrawler, Colossus or Shadowcat
• Even if you dont play x-men or Nightcrawler (ally), stun/confuse the whole board means two rounds of free-to-act; one in Hero, the another in Alter-Ego
• It also thins your deck and matchs conditions for Anticipated Attack

I usually almost-auto-include this card on every protection deck I do build. Protection is usually a team aspect, meaning the effect will still get a great value in duo, and a significant one in 3+ players; but also means others can thwart this scheme which is KEY since Protection usually have terrible thwarting cappabilities.

You must defeat the enemy with your hero's basic attack, which is very restrictive.

Hulk can +10 with a basic attack via event and Drax can reach the same amount (yet they are both of the worst characters of all the game).

3 Base ATK heroes can somewhat try to benefit from it, as long as the deck is built around buffing basic ATKs and/or making various basic ATKs per turn.

On the brighter side, this card is permanent and will stay for future reusagement (at the cost of your life)

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 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.