It took me a while to understand the point of debilitating "abilities", but I get it now. This card would probably be too strong if it had all of its current abilities and could also be trained. It mixes things up a little more to add and subtract.

Slow isn't as bad of an ability as some people are saying, either. Gathering The Magic pointed it out in a YouTube video, but there are only two Rebellion cards with the slow ability.