Inverted Iceberg [The Lost Caverns of Ixalan]

Introduction

When Inverted Iceberg enters the battlefield, mill a card, then draw a card. (To mill a card, put the top card of your library into your graveyard.)

Craft with artifact 4UU (4UU, Exile this artifact, Exile another artifact you control or an artifact card from your graveyard: Return this card transformed under its owner’s control. Craft only as a sorcery.)

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Iceberg Titan

Whenever Iceberg Titan attacks, you may tap or untap target artifact or creature. The force of a blizzard. The rage of a monstrosaur.