Tezzeret, Master of Metal — ruling 1

If you don’t have an artifact card in your library while resolving Tezzeret’s first ability, you’ll reveal your library and then randomize it.

Tezzeret, Master of Metal — ruling 2

The effect of Tezzeret’s third ability lasts indefinitely.

Tezzeret, Master of Metal : règles, fonctionnement et interactions (MTG)

Tezzeret, Master of Metal is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

+1: Reveal cards from the top of your library until you reveal an artifact card. Put that card into your hand and the rest on the bottom of your library in a random order. −3: Target opponent loses life equal to the number of artifacts you control. −8: Gain control of all artifacts and creatures target opponent controls.

How it works : Tezzeret, Master of Metal

Original English text — Wizards of the Coast / Scryfall

#1February 9, 2017· Wizards of the Coast
If you don’t have an artifact card in your library while resolving Tezzeret’s first ability, you’ll reveal your library and then randomize it.
No other card is named in this ruling.
#2February 9, 2017· Wizards of the Coast
The effect of Tezzeret’s third ability lasts indefinitely.
No other card is named in this ruling.

Interactions with other cards

These cards' text mentions Tezzeret, Master of Metal.

Tezzeret's Betrayal

Destroy target creature. You may search your library and/or graveyard for a card named Tezzeret, Master of Metal, reveal it, and put it into your hand. If you search your library this way, shuffle.