Bot Herder - MP25-EN149 - Prismatic Secret Rare - 1st Edition

Target 1 monster your opponent controls, that is a face-up monster you own or a face-down Defense Position monster; if that monster is no longer on the field, or is a monster you own (if face-down, reveal it briefly to check), apply these effects in sequence.
Inflict 200 damage to your opponent.
Take control of all monsters your opponent controls, except that monster.