Determined Iteration (NCC) from New Capenna Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Zoltan Boros
• Card Text:
  At the beginning of combat on your turn, populate. The token created this way gains haste. Sacrifice it at the beginning of the next end step. (To populate, create a token that's a copy of a creature token you control.)