Smaug, the Greedy

Flying, Firebreath (when this creature attacks,
you may pay {r}{r} if you do, it deals 2 damage to any target.)
When Smaug, the Greedy enters the battlefield,
create two treasure tokens.
Smaug has +1+1 for each treasure you control
Whenever Smaug deals combat damage, create a treasure token for each artifact that player controls.