Jigsaw

{t}: Add {1} to your mana pool. You may reveal
an artifact card from your hand. If you do Jigsaw
deals 1 damage to target player or planeswalker
Jigsaw gets +1/+0 for each artifact you control
"Hello Amanda. You don't know me, but I know you.
I want to play a game." - John, Saw (2004)