magic the gathering: how to build an artifact deck

[Boat]

how do you build an artifact deck in magic?

[Alterloth]

That's quite an open-ended question...Fifth Dawn's Nuts And Bolts deck is something you could look into:

Fifth Dawn Theme Deck - Nuts and Bolts

[seba1983]

there are sooo myna options. do you want a control deck, a lock deck, a fastagro deck, a midrange agro deck a combo deck? artifacts can do all of that.

do you want it for casual or to play tournaments ? its all possible.

[Lakepirate]

You build it including the artifact lands (if they are allowed) and cards like Tezzeret the Seeker (of truth), Disciple of the Vault (if it's allowed), and Cranial Plating.

IMO of course.