Kai'Sa

Kai'Sa is a 3-cost Dark Star and Rogue champion that usually plays as a backline damage dealer. Its pattern rewards longer fights, so a stable frontline and clean targeting are more important than instant burst. Kai'Sa appears in Rogue Diff and Feed the Stars lines, so keep copies when those boards are open.

Consider playing around Kai'Sa when you find a two-star copy in Stage 3 and your components already fit the unit. For items, Blue Buff and Deathblade are strong signals that Kai'Sa can become a real carry. For team direction, it fits naturally when you are already moving toward Rogue Diff and Feed the Stars. If it stays one-star, the traits do not activate, or the items point elsewhere, treat it as a transition unit instead of forcing the line.

Blue Buff, Deathblade and Infinity Edge are recommended. Blue Buff shortens the time between casts, Deathblade keeps attack damage high for basic attacks and physical casts and Infinity Edge increases physical burst through stronger critical strikes. The point of the setup is to give it enough uptime to convert its damage pattern into round wins.

When the perfect setup is not available, use Spear of Shojin, Nashor's Tooth, Adaptive Helm and Giant Slayer as substitutes. For damage substitutes, match the damage type and cast tempo instead of forcing random stats. If Kai'Sa is only a trait slot, one useful item is enough and the premium items should go to your real carry or main tank.

Early: hold useful components, but do not force the line before copies appear. Mid game: two-star Kai'Sa is the main power window for Stage 3 and Stage 4. Late game: either commit to a three-star angle or use it as a trait anchor while higher-cost units take over the items.

Place Kai'Sa in the back two rows with a clear line to the enemy frontline. Spread it away from your other carry unless you need same-side focus fire. It needs time to start casting, so avoid letting it get deleted immediately.