Voltage Surge (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Randy Vargas
• Card Text:
  As an additional cost to cast this spell, you may sacrifice an artifact.
  Voltage Surge deals 2 damage to target creature or planeswalker. If this spell's additional cost was paid, Voltage Surge deals 4 damage instead,