We are flying through these earlier strech goals on the UFO Wave Kickstarter! Which is great, because it means that we can give you all more stuff! This latest Event card unlock is called "Energy Leak". When it's drawn all players must discard a previously claimed Energy card of their choice (if they have one). This is one of those Events that's going to be bad some of the time, but good on other occassions. If you've been carefully absorbing Positive Energy to up your score you may have to discard some of it. However if you've been forced into absorbing Negative Energy you'll be able to get rid of that instead!
We've got a rather special Event card lined up for the next strech goal! Check out the Stretch Goals section of the Kickstarter at https://www.kickstarter.com/projects/davehodrien/ufo-wave-the-tactical-card-game-of-alien-supremacy/ for a clue ;)