- Playing As Kai
- Similar to bully-type characters, Kai can benefit from cards that cause battles such as and cards that increase his ATK in battle like .
- Since Kai has great base stats, and thus doesn't rely on cards, he can use cards like , , and to punish characters that do rely on cards.
- Playing Against Kai
- As Kai's main strength is his extra attack, cards that protect the user such as and are effective against him.