The official website for The Settlers of Catan

Question about Star Trek Catan When using Sarek, do I have to discard a “Starfleet Intervenes” card or a card from my hand?


You may choose whether to discard a “Starfleet Intervenes” card from your hand or a “Starfleet Intervenes” card you already have played. In the former case, you must refrain from chasing away the Klingon battle cruiser; in the latter case, you might no longer have the Largest Starfleet.