Valorous Stance - Daredevil makes a lot of these. Sure he usually handles street level threats, but occasionally he's a bit of a martyr
like that time he took a beating from The Hulk. Flex slot and fetchable with Sunforger. Keeps Mathas alive through destroy effects OR can be used as spot removal.
Faith's Reward - See Shielded by Faith above. Anti Nev's Disk, Bane of Progress, Wave of Vitriol, MLD tech. Sadly, while it can be fetched by sunforger, the stack order means it won't work in response to sweepers or removal. It has to be cast afterwards.
Teferi's Protection - He's the protector of Hell's Kitchen. Super hero'ing isn't about beating up criminals. It's about saving innocent bystanders and victims. This card is my "oh shit" button with sunforger. Unlike Faith's Reward, this one can be used in response to sweepers. You still lose tokens if phased out, but don't lose +1/+1 counters Fetchable by Sunforger.
Debt of Loyalty - Gladiator turning a new leaf and being given a chance by Daredevil. This card is awesome. Can be used to regenerate your own creature or as cheap, instant speed, permanent creature theft on an opponent's. Fetchable by Sunforger.
Deflecting Palm - Daredevil the martial artist. Fun little "gotcha" combat trick for those annoying Consuming Aberrations and other one-hit killers. Fetchable by Sunforger
Wear/Tear - Daredevil's costume goes through the ringer. Luckily, spandex is affordable for a successful attorney doing double duty as a night time vigilante. While fetchable with sunforger, Fuse only lets you use both modes at once if it is cast from your hand.
Rack and Ruin - Not a scientist, Daredevil's answer to most villainous contraptions are to smash them to bits. Cheap, instant speed 2-for-1 and fetchable with sunforger.
Oblation - Matt's Catholicism and an all purpose answer to any permanent type (and even card draw in a pinch). Fetchable by Sunforger.
Chaos Warp - Alternate universe versions of Daredevil and another all purpose answer to any permanent type. Fetchable by Sunforger.
Shattering Pulse - sometimes his super senses get overwhelmed. The deck tends to play at instant speed once it's gotten Mathas online and voltron'd. The buy-back lets me use this as a mana sink if I want to hold up mana to protect my board state via Faith's Reward/Teferi's Protection/etc. but end up not casting any of it. Not sure if that's worth the slot or not. Artifact removal. Fetchable by Sunforger.
Dark Temper - Despite being a hero and despite integrity being one of his defining characteristics, he's a passionate person whose circumstances often lead him to dark places. He's been known to let his anger get the better of him like that time he mutilated a helpless, defeated Bullseye. It's functionally a Murder as long as Mathas is in play. Creature removal. Fetchable by Sunforger.
Terminate - Tactic used by Bullseye, Elektra, Punisher, and other villains. Creature removal. Fetchable by Sunforger.
Go for the Throat - See Terminate above (might get cut since it's not fetchable with Sunforger).
Unlicensed Disintegration - The implication of guns or explosive weaponry may make this more of a Punisher tactic specifically. Creature removal. Fetchable by Sunforger.
Swords to Plowshares - After Gladiator turns over a new leaf he becomes a successful costume shop owner.
Steelshaper's Gift - [redacted because it spoils stuff from the TV show]. Options are Sunforger, Jitte, Blade of the Bloodchief, Nim Deathmantle, Mask of Memory, Swifties, or Whispersilk.
Open the Armory - another Steelshaper's gift. Essentially the same fluff as well.
Vampiric Tutor - This is Stick, the man who trained a young Matt Murdock how to cope with his heightened senses and how to fight. You know what tutors do.
Gamble - The Man Without Fear isn't afraid to take risks. You know what tutors do.
Boros Charm, Orzhov Charm, and Rakdos Charm - Daredevil symbol, rosaries, and crucifix. Boros charm offers sweeper protection and a one-time doublestrike effect. Orzhov is instant speed removal or can bounce a creature to save it. Rakdos Charm may be the best charm in EDH since it's always relevant with artifact destruction, graveyard removal, and anti-token tech.
Lapse of Certainty - Villains have enacted schemes with the goal of making Daredevil question his sanity. Karen causes him to question whether or not being a superhero is worth the risks. Foggy points out that being Daredevil is a self destructive behavior and is the cause of all the horrible things that have happened in his life. Mechanically, no one expects the non-blue counterspell,and even an over costed memory lapse can stop that last minute answer to lethal damage.