Aleta, the Immortal Traveller is a nice all-around flexible card. She can make any unlimited character in the game (including Star Trek) for 1 more than its normal cost every turn. Slow, yes, but usable--especially if you don't have enough of those darn swarmers.
However, since the latest patch (which let her make those adorable Tribbles, Redshirts, and Klingons), the prices listed for her tokens are the resource costs of the cards themselves--not the actual cost you pay, since you pay one more resource than the "listed price."
This is slightly confusing at first glance. I for one was extremely excited to make a turn 1 Tribble for free when I saw that it cost me 1 resource.