Urza, Lord High Artificer

When Urza, Lord High Artificer enters, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."
Tap an untapped artifact you control: Add {U}.
{5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Clock of Omens

Tap two untapped artifacts you control: Untap target artifact.

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