• When Sima Yi takes damage, he can use "Feedback" to claim one card from the player who dealt the damage, choosing between a hand card or an equipped card.

• "Feedback" activates on a 'per-instance' basis, meaning if Sima Yi takes multiple damage in a single action (e.g., from an attack with Wine), he can only take one card, not multiple.

• If several judgment manipulators are in play, their abilities resolve in order, starting with the current player and moving to the right. Each manipulator has the option to use their ability, continuing clockwise until the character seated directly to the left of the current player.

• If Sima Yi is on the brink of death, his abilities are suspended. He cannot take a card from the player who dealt the damage to search for a Peach or Wine until he is revived.

• Sima Yi cannot take a judgment card that is currently pending using "Feedback."

• Sima Yi’s "Feedback" can act as a strong deterrent for other players to avoid targeting him. If they have valuable hand cards or equipment, they might hesitate to damage Sima Yi for fear of him using "Feedback" to acquire these cards.

• Sima Yi's "Devil" ability grants him extensive control over judgment cards. Unlike Zhang Jiao, who can only alter black-suited judgment cards, Sima Yi can manipulate any judgment card, including hearts. This means he can change potentially harmful judgments into something more advantageous or neutralize dangerous cards, such as those that could cause him to be Captured.

• When equipped with the Eight Trigrams armor, Sima Yi can turn any red-suited hand card into an Escape. If the judgment card drawn is black-suited, Sima Yi can use "Devil" to switch it to a red card from his hand, effectively protecting himself or his allies.

• Sima Yi is particularly formidable when Lightning is in play. If he has a spade card numbered 2 through 9, he can direct Lightning to strike any player of his choice. Additionally, he can shield his allies from harm, provided he has a hand card that is not a spade numbered 2-9.

• As with other characters with three units of health, Sima Yi is relatively fragile. While his "Feedback" ability can deter opponents, determined enemies will often accept the risks of harming him if it means his elimination.

• Sima Yi's "Feedback" has limitations when dealing with multiple damage instances. For example, if he receives multiple units of damage at once, such as from an attack combined with Wine, he can only take one card per instance. This restriction diminishes the effectiveness of "Feedback" and can significantly impact his survival chances.

• Although Sima Yi can change the judgment card's suit with "Devil," he lacks other judgment manipulation abilities that Zhang Jiao possesses. Zhang Jiao can pick up the original judgment card and swap out equipped cards, providing more versatility. Sima Yi, in contrast, always incurs a net loss of cards when using "Devil."

• The order of turns affects who has the final say in judgment card changes. If Sima Yi has fewer characters to his immediate right compared to Zhang Jiao, and they are not on the same team, Sima Yi might find himself at a disadvantage in judgment card manipulation.

• Judgment Tinkerers:
  Characters who manipulate judgment cards can form powerful combinations with Sima Yi. When Zhang Jiao forces a judgment card flip, Sima Yi can offer support by providing spade cards if needed. If Zhang Jiao has the Eight Trigrams armor, Sima Yi can guarantee an Escape. The two can swap cards, with Sima Yi enabling Zhang Jiao to change judgments to his advantage, like turning a card into an Escape. However, seating order is crucial. If Sima Yi sits to Zhang Jiao’s immediate right, he can modify judgment last, protecting allies. If Zhang Jiao is positioned at Sima’s right, Sima’s control over judgments diminishes. Zhang Jiao and Sima Yi are notably strong together, but can also be strategic rivals depending on seating. Examples include Zhang Jiao.

• Judgment-Based Characters:
  Characters who rely heavily on judgment cards benefit from Sima Yi’s ability to replace unwanted cards. Zhen Ji, for example, uses her "River Goddess" to flip judgments, and Sima Yi can swap red cards with black ones to ensure her ability continues smoothly, giving her a constant supply of cards while controlling outcomes. Examples include Zhen Ji.

• Control Characters:
  Characters who control enemy actions through Capture effects work well with Sima Yi, as he can ensure the failure of their targets’ judgment flips. Da Qiao’s "Country Scene" allows her to cast Capture on multiple opponents, and Sima Yi can manipulate the results to help her succeed. If facing her, Sima can shield his team from Capture. Examples include Da Qiao.

• Damage Mitigation:
  Sima Yi’s "Feedback" ability struggles against characters whose damage source isn’t directly traceable, as this limits his ability to steal cards. Zhang Chunhua, with her "Unfeeling" ability, avoids being a source of damage, rendering Sima’s Feedback useless against her. Examples include Zhang Chunhua.

• Multiple Damage Dealers:
  Characters capable of dealing multiple instances of damage can exploit Sima Yi’s "per instance" card-stealing ability, making it more difficult for him to recover multiple cards quickly. Characters like Xu Chu, who can deal two units of damage easily, are particularly effective in this situation. Examples include Xu Chu.

King

• • Sima Yi is a somewhat average choice for a king, often overshadowed by more robust options. His fragility is a significant concern. If multiple rebels are present, they can exploit Sima Yi's "Feedback" more effectively, spreading the burden of his ability.

Loyalist

• • Sima Yi can serve as a decent loyalist. He can assist the ruler in passing judgments from time-delay tool cards using "Devil." However, his fragility makes him a likely target for rebels.

Rebel

• • Sima Yi can be a formidable adversary to the ruler. His ability to deal multiple units of damage, particularly with cards like Lightning, makes him a significant threat. Few characters can inflict three units of damage to the ruler as effectively as Sima Yi.

Spy

• • Sima Yi excels as a spy due to his impartiality. He can benefit from the king and loyalists targeting him by taking a card with "Feedback," making them more vulnerable. Rebels might not be pleased with his allegiance to the ruler but may avoid him to focus on more pressing targets. Additionally, Sima Yi can use feigned loyalty to manipulate the ruler or loyalists into playing Lightning, weakening their team if they become too powerful against the rebels.

Sima Yi is a highly strategic character, particularly when paired with Zhang Jiao. His "Feedback" can effectively deter opponents from targeting him by reminding them of the potential cost of their actions. If you find yourself low on health, prioritize taking hand cards over equipped cards, as they might provide you with crucial resources like an Escape or Peach to keep you alive. Equipment alone won’t save you if you’re dead. When facing Zhang Jiao as an enemy, exercise caution and prioritize eliminating him swiftly and carefully to prevent his interference in judgment tinkering.

Sima Yi, a prominent strategist and statesman during the late Eastern Han Dynasty, is renowned for his cunning and strategic acumen. His most notable historical feat involves his clever manipulation of political power. In 249 AD, during the Three Kingdoms period, Sima Yi orchestrated a masterful coup to seize control of the Wei state. 

Feigning illness allowed him to avoid suspicion and act with greater freedom while then-regent Cao Shuang, was left in charge. Sima Yi used this period of pretense to consolidate his power and prepare his move. When the opportunity arose, he launched a sudden and decisive coup against Cao Shuang and his faction. His careful planning and strategic deception enabled him to outmaneuver his opponents and secure his position as the de facto ruler.

This historical episode reflects Sima Yi's ability to use subterfuge and strategic planning to achieve his objectives, much like how he employs his game abilities to manipulate judgment cards and control the flow of the game.