Double Edge Sword Technique and Shien's Dojo

when using double edge sword technique with Shien's dojo and summon 2 six samurai monsters, will take attack two bushido counters on shien's dojo or only one? thanks

They are summoned at the same time, so it doesn't count as two summons. Each card will gain counters according to this:

Gateway Of The Six Samurai - 2 Counters
Six Samurai United - 1 Counter
Shien's Dojo - 1 Counter
Temple Of The Six - 1 Counter

ohhhh thanks! that cleared up a lot of my questions