This card is easily, half of Echo's power. ATTACK and THWART triggers for Improvisation with lot of versatility to choose between damage or threat (or both!), play it once every turn by storing it in Echo and returning it via Muscle Memory (so it can return to Echo). Just First Aid your Daredevil from time to time and you are fine. With American Sign Language and Daredevil's discount, the combo is even free from any cost!

Do you feel like having a desire to rush for this combo? Add copies of Dynamic Duo and you will be lit in no time. Enjoy your lack of senses, because your enemies wont ;D

This is usually a trap, if it wasnt because protection lacks of other better options for removing threat. You need to defend with no damage, 2-3x times per each card, to start netting a positive benefit. Implicit in the cost is the necessity of your hero to get exhausted for that.

Apart from lacking for other better options, protection have some new and old tricks to ready their identity, plus the fact that 3x copies of this ends up thinning your deck (which is usually wanted). Thats what saves it from the fire. At least for the moment.

The new card The Best Offense... gives you the opportunity to strike for your full DEF's value (+1), since this card decreases ATK and you are employing your DEF.

The real cost is to be able to exhaust, since it needs a basic attack to trigger.

The odds of having both The Best Offense... and Leading Blow in the hand at the same time is also a restricting condition; If you hero doesnt have 3 or more ATK, this is a dead card witout "TBO..."

In resume, you may want to include 3x copies of it plus 3x of the abovementioned; otherwise the average base utility of this card is bad and very restrictive.

A list of all the heroes, formatted as THW/ATK/hit points. Heroes with multiple hero forms are on the same line. Up to date as of Luke Cage and Jessica Jones.

Adam Warlock 1/1/11

Angel 2/1/12, Archangel 0/2/12

Ant-Man (Tiny) 2/1/12, Ant-Man (Giant) 1/3/12

Bishop 2/2/12

Black Panther (T'Challa) 2/2/11

Black Panther (Shuri) 2/1/11

Black Widow 2/2/9

Cable 2/2/12

Captain America 2/2/11

Captain Marvel 2/2/12

Colossus 1/2/14

Cyclops 2/1/10

Daredevil 2/2/10

Deadpool 2/2/9

Doctor Strange 2/1/10

Domino 1/2/9

Drax 1/1/14

Echo 2/2/9

Falcon 2/2/10

Gambit 1/2/9

Gamora 2/2/10

Ghost-Spider 1/2/10

Groot 1/2/10

Hawkeye 1/2/9

Hercules 1/3/14

Hulk 0/3/18

Hulkling 1/1/13

Iceman 1/2/11

Iron Man 2/1/9

Ironheart 1/2/10

Jessica Jones 3/2/11

Jubilee 1/1/9

Luke Cage 2/2/10

Magik 1/2/10

Magneto 2/2/10

Maria Hill 2/1/9

Ms. Marvel 1/1/10

Nebula 2/2/9

Nick Fury 2/2/10

Nightcrawler 2/1/9

Nova 1/1/10

Phoenix 3/1/9

Psylocke 1/1/10

Quicksilver 1/1/9

Rocket Raccoon 2/1/9

Rogue 2/2/11

Scarlet Witch 2/1/10

Shadowcat 2/2/9

She-Hulk 1/3/15

Silk 1/2/10

SP//dr 2/2/14

Spectrum 1/1/11

Spider-Ham 2/1/12

Spider-Man (Peter Parker) 1/2/10

Spider-Man (Miles Morales) 2/2/9

Spider-Woman 1/1/11

Star-Lord 2/2/10

Storm 1/2/10

Thor 1/2/14

Tigra 1/2/10

Valkyrie 1/2/12

Venom 1/2/12

Vision 2/0/11

War Machine 1/2/10

Wasp (Tiny) 1/1/11, Wasp (Giant) 2/2/11

Winter Soldier 2/2/11

Wolverine 2/2/10

Wonder Man 2/1/12

X-23 2/1/10

Hope this helps!

This is fun. Add it to Hulk, She Hulk, Colossus, Thor, or other super strong character, along with Combat Training to create the theme. Then swing away. It helps if you have some way of readying the character as well. Limitless Stamina is one idea. I'm sure there are more. I missed a lot of the content in the middle period after guardians and am trying to catch up.