Mixed feelings. This event card is just so great, but it really hurts if a team is left with 2 players. Good thing it didn't appear later.
Zeru got quite a point here. (Pun intended)
That is why I think it might be a good idea to have the event cards devided into a few different groups: 8 event cards to make the first 5/6 rounds, then 8 to make the next 5/6, and 8 to make the final 5/6. (considering war isn't likely to take more than 15/18 rounds).
Or a few cards only for early rounds, a few only for later rounds, and the rest just randomly assigned.
Cards like Sacrifational Altar and Tactical Point could be for early round only, while cards like Reinforcements would be better in later rounds (I mean, what is the point in picking 12 extra cards in round 2 or something).