Can I get an Itemized Receipt
Amazing Accomplishments
Relative Trouble
Voice Lines
War Crimes
100

This top lane Champion canonically wears Deadman's Plate. 

Who is Gangplank?

100

This Champion conviced an army of trolls that they took a bite out of the moon. (It was a crescent moon)

Who is Trundle?

100

This champion was set to marry Jarvan the 4th, unbeknownst to their sibling.

Who are Garen and Lux?

100

"Who wants a piece of the champ?"
*On move command*

Who is Jax?

100

This champion once skinned a man with regenerative powers, just so that they could continuously skin him with their chains.

Who is Thresh?

"The Ruination" Novel by Anthony Reynolds

200

This Midlane Mage is confirmed to have possesion of the Morellonomican. Thanks to the work of Legends of Runeterra.

Who is Veigar?

200

Raised in the province of Galrin, Ionia. This champion forced a group of mageseekers to dance so hard they forgot about the performer, likely only able to remember the pain.

Who is Sona?
Side note they danced so hard they shattered bones.

200

These 2 champions fought a 3rd for so long that the younger sibling was gaslit (As if that were real) into hating the older one.

Who are Nasus and Renekton?

200

"Your god could not stop me before, sea priestess. Do not challenge me again."
*First encounter with Illaoi*

Who is Viego?

200

This Champion created a substance to aid in the Noxian invasion of Ionia. It caused riven to defect in horror, razed Master Yi's home village, and destroyed large swathes of the Ionian resistance.

Who is Singed?(double points for "Who is Dr. Corin Reveck?")
Lol wiki- "First Noxian Invasion of Ionia" (987 AN)

300

Serylda's Grudge refers to Serylda, who was later reincarnated into this champion.

Who is Sejuani?

300

In their cover story, this champion waded through a battle between two armies just to save a single flower. Then left unharmed.

Who is Taric?

300

These siblings were set to be executed during a Noxian Invasion, had one of them not boasted of his achievements. 

Who are Draven and Darius?
(Shout out Necrit for his Thumbnail)

300

"The void will never accept defeat."
*Co-op vs Ai, player victory*

Who is Malzahar?

300

This Champion once submerged one brother in an underwater coffin with an air tube, while luring over the other, subsequently killing both.

Who is Miss (Sarah) Fortune?
"Down among Dead men" Short story

400

Spear of Shojin refers to the Shojin Monastery from which this Ionian champion hails.

Who is Lee Sin?

400

This Champion turned a man's heart into a pile of marshmallows, it is believed he died shortly after.

Who is Lulu?

400

Both born in Targon on of these champions would through down their sword and the other would pick it up to continue an aspects quest.

Who are Kayle and Morgana?

400

"I don't blame you, I'm quite strong."
*When Banned*

Who is Nilah?

400

This champion known is a known fixer in Piltover/Zuan. Effectively running a shadow ops military and terrorizing the poor.

Who is Camille?
"Tea with the Grey Lady" short story

500

Seeker's Armguard Originally belonged to his champion before Sejuani reclaimed it.

Who is Lissandra?

500

This Champion dug out the Howling Abyss and built a bridge over it. This helped further seal the watchers, and gave us ARAM. 

Who is Ornn?

500

This Noxian Trio don't exactly get along. When two of them aren't trying to kill each other, the third is releasing Ascended Beings.

Who are Cassiopeia, Katarina, and Talon
(Or The Couteau Family)

500

"Two alchemists were murdered over thirty years ago, Camille. Do you remember them?"
*First encounter with Camille*

Who is Renata Glasc

500

This champion has a hobby of Scrimshawing, the cutting and carving of bones, and explicitly waits for their victims to wake up so that they can continue.

Who is Gangplank?
"Burning Tides: Act 2" Shortstory