When this card inflicts battle damage to your opponent: You can activate 1 of these effects;
● Discard 1 random card from their hand.
● Send the top 2 cards of their Deck to the GY.
Rulings
Netrep Rulings
The effect of "Don Zaloog" is not mandatory.
"Don Zaloog's" effect triggers if it inflicts Battle Damage, regardless of if it is attacking or is attacked.
If "Don Zaloog" attacks and destroys "Witch of the Black Forest" and inflicts Battle Damage, "Don Zaloog's" effect will resolve first as it triggers on Battle Damage.