Target 2 of your "Labrynth" Spells/Traps that are banished or in your GY, except "Labrynth Set-Up"; shuffle them into the Deck, then if you control a Fiend monster, you can Set non-"Labrynth" Normal Traps with different names directly from your Deck equal to the number shuffled.
You can only activate 1 "Labrynth Set-Up" per turn.