14 cards where the text includes “artifact enters”

Arcbound Crusher (Planechase #105)
Banner of Kinship (Foundations #127)
Battered Golem (Fifth Dawn #106)
Grinding Station (Fifth Dawn #127)
Heraldic Banner (Foundations #254)
Junkyard Scrapper (Alchemy: Kamigawa #20)
Karstoderm (Darksteel #77)
Leonin Elder (Mirrodin #10)
Serum Tank (Planechase #125)
Sorcerous Spyglass (Foundations #679)
Soul-Guide Lantern (Foundations #680)
The Prydwen, Steel Flagship (Fallout #22)
Vermiculos (Mirrodin #80)
Wishclaw Talisman (Foundations #617)

It is the moment of discovery, the triumph of the mind, and the end of these results.