Shinra, Bearer of the Rings

{1} Sacrifice Target Artifact you control, draw 3
cards then discard 2 cards at random.
{2} Tap untapped Artifact you control, exchange
target untapped Artifact you control with an
Artifact card from your hand.
{3} Tap untapped Artifact you control, search
your Library for an Artifact card with equal or
lesser Converted Mana Cost, reveal it, and put
it into your hand. Shuffle your Library.