Alther, Adventuring Alchemist

{1}{u}{r}: Flip a coin.
Whenever you win a coin flip, create a Treasure
token. Whenever you lose a coin flip, Alther deals
2 damage to each creature. (It's an artifact with
"{t}, Sacrifice this artifact: Add one mana of any
color.")
"The pathway to infinite treasure is wrought with fiery explosions."