Blacksmith's Skill — ruling 1

Blacksmith's Skill checks whether the permanent is an artifact creature when it resolves. If the target isn't an artifact creature when the spell is cast but becomes one before the spell resolves, it will get +2/+2.

Blacksmith's Skill : règles, fonctionnement et interactions (MTG)

Blacksmith's Skill 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

Target permanent gains hexproof and indestructible until end of turn. If it's an artifact creature, it gets +2/+2 until end of turn.

How it works : Blacksmith's Skill

Original English text — Wizards of the Coast / Scryfall

#1June 18, 2021· Wizards of the Coast
Blacksmith's Skill checks whether the permanent is an artifact creature when it resolves. If the target isn't an artifact creature when the spell is cast but becomes one before the spell resolves, it will get +2/+2.
No other card is named in this ruling.