MagLuck

Magluck is the slash ship between Magna Swing and Luck Voltia from the Black Clover fandom.

Canon
Magna and Luck are both members of the Black Bulls. Upon their first meeting Luck electrocuted Magna with his lightning powers to see what kind of face he would make.

During a flashback Magna describes Luck's personality as "this dude's got some serious issues," and recounts pranks that Luck has pulled on him as well as risky moves he's made on missions, including spinning Magna into a small typhoon of lightning to toss at enemies and calling it the Crackling Magna Typhoon. He then says that Luck is his best friend. During that same flashback Luck recounts how he underestimated Magna upon their first meeting, but his instincts told him "This guy's gonna be dangerous but interesting", and has since pulled constant pranks to goad Magna into sparring with him. He then states that Magna is the first friend he ever made, coming from a lonely background where all of the kids his age were afraid of him.

One of Luck's more common pranks is eating Magna's favorite pudding and rubbing it in, saying it tastes better because it wasn't his, until Magna begins tossing fireballs at him.

Despite being rivals it is clear that Luck has more innate battle talent as well as a larger well of mana to pull from. Magna uses this as his motivator to continue growing and becoming stronger, frequently declaring that Luck isn't allowed to leave him behind. Luck uses that to push Magna further with his teasing but is always impressed and delighted when Magna shows improvement.

During the beach trip Luck catches Magna's swim suit on fire to initiate a game of chase and pouts when the fire goes out and Magna's swimsuit disintegrates.

The two work very well together as shown in their fight against Vetto, even unleashing a combination attack of their powers that is dubbed the Flame-Lightning Explosive Cannon.

During their fight while Luck was possessed by Lufulu the elf, Magna catches him off guard a few times, stating that only Luck would know exactly how Magna fights. Throughout this fight Magna begs, several times, for Lufulu to give Luck back, even saying he should fight Magna now that he's stronger. While Lufulu has Magna by the neck the elf begins to inexplicably cry while Luck fights for control over his body. After the fight Luck properly breaks into tears, the first instance of him showing any emotion other than a smile or battle-crazed grin, as he asks Magna if he's still a Black Bull. Magna pulls him into a hug and assures him that he is.

Luck has loudly exclaimed that he would like his room in the Black Bull's base to be placed next to Magna's so he can sense Magna's mana and know what he's up to at all times.

Fanon
This is the most popular ship for each character but still currently ranks 5th in most fanfiction on the AO3 fandom tag.

The basis of the pairing stems from the dynamic of "pigtail pulling" (The act of harassing, insulting, or physically hurting someone because you are secretly attracted to them, in the manner of a grade school boy pulling the pigtails of a girl he has a crush on.) As seen with Luck's constant goading Magna for his attention, shippers believe Luck's pranks and teasing to be a product of his feelings for Magna. In that same vein shippers believe Magna's tolerance for Luck's teasing and the lack of lasting anger towards Luck to be a product of those feelings being reciprocated.

The two are frequently paired together, platonically or romantically, in fan art and fan fiction even when Magluck is not the content subject. This occurs in most of the anime's openings as well.

Fandom
FAN FICTION
 * Magna S./Luck V. tag on FanFiction.net
 * Magna S./Luck V. tag on FanFiction.net

TUMBLR

Trivia

 * Magna's listed favorite things include spicy food, manly men, and pudding after spicy food. While Luck's include strong opponents, messing with people, and Magna's pudding.

Quotes
"The ones who are going to fight in the finals aren't you and that Yuno guy! It's going to be me and Luck!" -Magna (ep. 75) said to Asta

"I don't care if you're an elf or not. I'm not talking to you. I'm talking to that idiot...So you can hurry up and get the hell out of that body, dumbass!" -Magna (ep. 104) said to Lufulu in Luck's body

"Why? He's obviously trying to hide his embarrassment, you virgin delinquent. Look at you, hugging him like that!" -Vanessa (Ep. 105) said to Magna

"You're not going to leave me behind, d'ya understand me? If you get ten times stronger then I will too. You might get a step ahead but you'll never outdo me. I hope you're okay with that." -Magna (Ep. 125 dub)