If Darius is played as the third card in a turn, can he be readied by playing a fourth card that same turn?

Ruling: No, Darius cannot be readied in this scenario. Darius can only count cards played in the turn that he was able to see, meaning cards played after he resolves. If he is the third card played, he did not see the second card being played, so his trigger condition cannot be fulfilled by playing additional cards after him.

Nuances:

• Darius can see himself when counting cards played in the turn
• If Darius is played as the second card, he can ready himself immediately because he sees himself as the second card
• Darius has "super vision" to count cards played in the turn no matter where he is, but only for cards played after he resolves