Warforged Armorer

Gains +1/+1 for every artifact in play.
Discard an Artifact or Sorcery from your hand:
Warforged Armorer is Indestructible until end of
turn.
{3}: Search your library for an Artifact or Sorcery, reveal that card, and add it to your hand. Then shuffle your library.
{t}{2}{u/r}{u/r}: Copy any card discarded this turn. You
can cast it without paying it's mana cost.