Mob Rule (VOC) from Crimson Vow Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jakub Kasper
• Card Text:
  Choose one—
  • Gain control of all creatures with power 4 or greater until end of turn. Untap those creatures. They gain haste until end of turn.
  • Gain control of all creatures with power 3 or less until end of turn. Untap those creatures. They gain haste until end of turn.