I've asked aeo this and he said he'll be adding Little Cup later on. (When that is, I'm not sure.) For now just ask for a battle in the main chat, hopefully someone there plays Little Cup; either that or just play on the Smogon PO server. Before a Little Cup tier is added I hope aeo adds a slider for the ev's in the teambuilder, it's really hard making Little Cup teams inserting random ev values. (assuming you don't know how lc ev's work like me) Yeah, I know you could just make a team on PO's teambuilder but personally I like PS' teambuilder better; which I applaud aeo on - it's really nice.