Prismarius, Dragon God

Flying, Immortalize
When this card enters the battlefield, attacks, or defends,
create 3 treasure tokens. Treasure tokens you control
have "{t}, Sacrifice this card: Add 3 mana of any combination of colors. You don't lose this mana at the
end of phases, steps, and turns."
When a dragon enters the battlefield, create a 3/3 dragon
with flying, haste, hexproof, and trample.