If Darius is played and then Kai'Sa, does Darius count himself toward his play requirement?

Ruling: Yes, Darius counts himself when checking if cards have been played. When Kai'Sa is played after Darius, she becomes the second card played, triggering Darius's effect.

Nuances:

• The order doesn't matter - even if played in reverse order (Kai'Sa then Darius), Darius would still trigger because he sees himself as the second card played