Green Lantern, God of Light

Flying, indestructible
{x}{w}{w}: Search your library for an artifact or enchantment card with converted mana cost X
and exile it. Create a token copy with two
construct counters on it of a card exiled with this
waywith converted mana cost X or less. It has
"Whenthis token has no construct counters on
it,sacrifice it." Remove a construct counter from
a token you control.