Lively Artisan

When Lively Artisan enters the battlefield, up to
one target artifact you control becomes an
artifact creature with base power and toughness
4/4 for as long as Lively Artisan remains on the battlefield.
Exhibit {3}{u} ( {3}{u}, Exile this card from your graveyard: Create a token that's a copy of it, except
it's a colourless artifact with no other card types and
no mana cost. Exhibit only as a sorcery.)