Can Darius - Trifarian ready himself and gain +2 might when he is played as the second card in a turn?

Ruling: Yes, Darius can ready himself and gain +2 might when played as the second card in a turn. His effect triggers on playing the second card "this turn," so he sees himself being played.

Nuances:

• Darius's effect can trigger every turn, not just the turn he was played
• When playing two Darius cards in one turn (e.g., on a 10 rune turn), both become ready when the second one is played, and both enter at 7 might (5 base + 2 from effect)