Karn, Scion of Urza Hour of Devastation made from 2 mm of

made from 2 mm of natural rubber

then sacrifice it unless you pay its upkeep cost for each age counter on it

put X +1/+1 counters on each creature you control

exile up to one other target nonland permanent

this Equipment deals 2 damage to any target and you draw a card

Karn, Scion of Urza Hour of Devastation made from 2 mm of+1: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other with a silver counter on it. 1: Put a card you own with a silver counter on it from exile into your hand. 2: Create a 0 0 colorless Construct artifact creature token with "This token gets +1 +1 for each artifact you control."