Predecessor Builds > Dekker > Dekker Mid, Ion Beam Lockdown.

Just a fun little Dekker mid build. Probably does not hold up into high ranks.
Build path is pretty set, but you could swap around some stuff depending on match-ups. Tainted could easily go earlier.
Noxia/Wraith Leggings are both great picks that offer a ton of burst, so you can't really go wrong with either. Just depends on the pace of the match.
Sometimes Noxia may be a touch better into slightly healthier teams.
Remember to stack Obelisk on em after ulting. <3 Extra disrespect <3