[Loki] is the master of Easy Mode. That's what they call him. And I can agree with that. But is that make him bad? Not at all!
So I heard you need frame for spy mission... sure, not a problem. Thanks to high duration and average range you can be invisible for a long time and use your Decoy as a fast teleport between lasers traps or barriers.
I heard you like to watch enemies turn against each others... well you have it.
This build is my universal solution for any problems.
Suggested arcanes are [Fury] & Strike.