Now that Nexus Blitz is on, how do we test these items in Alpha Version?

Suggestion: Enable different modes for Practice Tool, including, Nexus Blitz, Howling Abyss, Twisted Treeline. I don't know what technology you would need to enable Practice Tool there, but it would really help to test those new items with different mechanics. Finding and fixing a bug now it's more useful than encountering a bug in Nexus Blitz and not being able to know how to replicate it / fix it.

I think Playtesters can test them. But there're not a lot of Playtesters, and there're a lot of players, so we have better chance of finding stuff.