Shiny Impetus
Enchantment — Aura{2}{R}
Enchant creature Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.) Whenever enchanted creature attacks, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Colour identity Red · Goad, Treasure, Enchant
In short
Shiny Impetus has 10 listed printings; the most valuable is the Secret Lair printing from SLD at US$1.45 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
Every Shiny Impetus printing
Secret Lair
Shiny Impetus
SLD · 7165
Price not tracked
Shiny Impetus
C20 · 55
Price not tracked
Secret Lair
Shiny Impetus
SLD · 1845
Price not tracked
Shiny Impetus
MKC · 161
Price not tracked
Shiny Impetus
LTC · 227
Price not tracked
Shiny Impetus
CLB · 194
Price not tracked
Shiny Impetus
TDC · 231
Price not tracked
Shiny Impetus
OTC · 180
Price not tracked
Shiny Impetus
AFC · 138
Price not tracked
Shiny Impetus
CLU · 147
Price not tracked