♠ Peak ♠

It is possible that the character Peak (King of Spades) from the animated series "13 Cards" was meant.
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Pieck is the King of Spades, clone number 8, and leader of the clone team. He balances between his desire to lead and his disillusionment with others.
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besit.fandom.com
Some character characteristics:
silent and withdrawn, prefers to observe and not interfere;
has a talent for oratory and is able to deceive anyone;
physically strong, although he rarely shows it;
wields weapons and is one of the four clones with magical abilities (uses a key).
According to Kuromaku, Pieck is the most evil of all, wanting to break free from his long imprisonment in the card world.

The {{X}} ( Lose ) symbol indicates a Pokémon that the developers have deemed unavailable for battle. It appears directly below the Pokémon's sprite.
You can add status effects by typing {{Sleep}} Sleep , {{Freeze}} Frozen , {{Poison}} Poisoned , {{Paralyze}} Paralyzed , or {{Burn}} Burn
Remember, you'll need to upload your own Pokémon sprite named File:Ani#OD.png (with the Pokémon's #). After uploading, rename it to File:Ani#MS.png. This will allow you to clearly see the Pokémon.
Instead of the Pokémon itself, you can also write "Poke," which will add a bit of mystery. Leave the other fields blank, for example: ablo
The Pika-Fanon Scoreboard is a template that helps readers keep track of the progress of a Pokémon battle.

Some roleplay battles can be difficult to understand because they don't specify who has which Pokémon, how many Pokémon can be used, or which Pokémon are eliminated. Therefore, this template is intended to show who lost what in the battle.

The scoreboard, if used, should be located at the bottom of each round so as not to distract readers from the results, but still allow them to refer to it during the round if they wish.

Example
This template uses Template: PartyPoké and Template: X. For more information, simply edit this page to see the layout.

Pokemon Match Example
Silus Pokemon
Usage:
391 Monferno
Poisoned
025 Pikachu
Lose
502 Dewott
Paralyzed
236 Tyrogue
315 Roselia
491 Darkrai
Burn
Jason's Pokemon
Usage:
496 Servin
Sleep
571 Zoroark
style="background:#Template loop detected: Template:Bug color; color:#FFFFFF" | Bug color: <span style="color:#Template loop detected: Template:Bug color"></noinclude>A8B820; border: 1px solid #6D7815;" 214 Heracross
006 Charizard
Frozen
172 Pichu
Lose
143 Snorlax
Explanation of the mechanics
The {{X}} ( Lose ) sign indicates a Pokémon</span>

13cards.fandom.com Some facts about him:
Silent and withdrawn, he prefers to observe and not interfere, but at the same time has a talent for oratory and is capable of deceiving anyone.
He is physically strong, although he rarely shows it.
He is proficient with weapons and is also one of the four clones that possess magical abilities (uses a key).
According to Kuromaku, Pieck is the most evil of all, wanting to break free from his long imprisonment in the card world.
A recognized leader among the clones, he rarely gives them orders.

fanfics.me
Perhaps they were referring to tests with the character Peak; such tests are available on the website trikky.ru under the tag "peak."
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fanfics

Spade: the king of all cards, representing evil and cruelty
In the game "13 Cards" (Land of Kings), Spade is a character who embodies the evil, cold, and cruel side of personality. He is the king of all cards, but his rule is authoritarian and does not allow anyone to freely express their thoughts and feelings.

Peak is always surrounded by his servants and loyal aides, who carry out his every command without hesitation. He does not tolerate disobedience and is prepared to severely punish those who dare to violate his rules.

In the game "13 Cards," Spade often acts as an antagonist, opposing other characters. He frequently uses his power and authority to achieve his goals, often leading to conflict and violence.

However, despite his cruelty and authoritarianism, Peak also possesses some positive qualities. He can be highly intelligent and cunning, and is capable of seeing things from different perspectives and making unconventional decisions.

Thus, Peak is a complex character who combines both positive and negative qualities. His role in the game "13 Cards" makes him an interesting and memorable character.

Perhaps they were referring to the character Pik (King of Spades) from Fyodor Nechitailo's comic book "13 Cards".
13cards.fandom.com
fanfics.me
Some information from the character profile:
Zodiac sign: Scorpio.
Status: free.
Race: clone.
Gender: male.

aminoapps.com
Some characteristics of Peak:
Silent and withdrawn, he prefers to observe and not interfere.
fanfics.me
He has a talent for oratory and is capable of deceiving anyone.
fanfics.me
He is physically strong, although he rarely shows it, and is proficient in weapons.
13cards.fandom.com
fanfics.me
Dislikes other clones.
aminoapps.com
He is quite selfish, so if necessary he can sacrifice his own partner.
aminoapps.com
He may be a reliable person, but only if this does not contradict or interfere with his goals.
aminoapps.com
He is sometimes inclined to resort to cheating, but if motivated to do something, he will do it honestly and well.
aminoapps.com
Some facts about the character:
Always walks around with disheveled hair. A few strands of hair look like cat ears or devil horns.
The eyes are black when he is calm, but when he is irritated they become red with a narrow cat-like pupil.
Is one of two clones that has magical abilities (uses a key).