ARTIFACT
... Edifice of authority
... Cogworker's puzzleknot
... Glassblower's puzzleknot
... Traveler's amulet
... Key to the city
... Thaumatic compass
... Treasure map
... Service schematic
... Tezzeret's touch
... Renegade Map
... Gonti's aether heart

OTHER
... Walk the plank
... Opt
... Morbid curiosity

http://www.mtgsalvation.com/forums/the-game/standard-type-2/deck-creation-standard/768045-u-b-metalwork-colossus-tezzeret

http://aminoapps.com/page/mtg/5460225/colossus-control-standard-deck-tech

https://spellsnare.com/2017/02/01/ub-colossus-decklist-aether-revolt-standard/

http://www.starcitygames.com/article/34248_Tezzeret-The-Schemer.html

https://www.mtggoldfish.com/articles/instant-deck-tech-tezzerator-standard