Doom Virus Dragon [DRL2-EN003] Secret Rare 2018 Mega-Tins Mega Pack if your opponent adds a

if your opponent adds a card(s) from their Deck to their hand (except during the Draw Phase or the Damage Step): You can banish 1 random card from your opponent's hand

Special Summon 1 "Magician Girl" monster from your Deck

inflict damage to your opponent equal to half the original ATK of that monster

You can not Summon other monsters the turn you activate this card (but you can Normal Set )

If a face-up Toon Monster is on your opponent's side of the field

Doom Virus Dragon [DRL2-EN003] Secret Rare 2018 Mega-Tins Mega Pack if your opponent adds aSet: Dragons of Legend 2 Card type: Fusion Effect Monster Rarity: Secret Rare Attack: 1900 Defense: 1500 Must be Special Summoned with "The Fang of Critias", using "Crush Card Virus", and cannot be Special Summoned by other ways. If this card is Special Summoned: Check your opponent's hand, all monsters they control, and all cards they draw until the end of their 3rd turn after this effect's activation, and destroy all those monsters with 1500 or more