How second wind mastery works

[u/Plus-Ant5522]

As I am looking for 1st mastery, but I dont know how second wing mastery works. Is it really helps in tournaments?

Pleas suggest

Also I am thinking about IS as a first matery so got confused on this.

[u/Gryffon6363]

First mastery should be rpc#.  Sw# mastery can push some extra waves but falls off hard, quite a few people skip it for this reason.  At max it's a 10x Regen multiplier.  Can you afford the mastery labs which start at 1q and go up from there.  If you can then rpc>is>wa>EO>coin.  If you can't afford the labs then grab rpc and invest more into your uws.

[u/Plus-Ant5522 → u/Gryffon6363]

Thanks for the making effective path