Sandstorm Crasher (J25) from Foundations Jumpstart, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Néstor Ossandón Leal
• Card Text:
  Trample
  You may exert Sandstorm Crasher as it attacks. When you do, create a tapped and attacking token that's a copy of target creature you control. Sacrifice the token at the beginning of the next end step. (An exerted creature won't untap during your next untap step.)