[quote=@Deadlyrose9641]
Ive never heard of the Pixie, but if you think that's where it fits, that sounds good, i was just gonna have a super like squishy but high damage and mobility type mobile suit
[/quote]

http://www.mahq.net/mecha/gundam/crossdimension/rx-78xx.htm

That's pretty much its role. The RX-78XX is a 'squishier' and far more agile version of the RX-78, yeah. Of course, given that all the RX-78s are made of Luna Titanium, they're still far more tanky than nearly every other MS in the era.