Cower in Fear [Mystery Booster] Strike of Neos when an opponent's monster effect

when an opponent's monster effect is activated: You can detach 1 Xyz Material from this card

Set: Battle of Chaos Card type: Effect Monster Rarity: Ultra Rare Attack: 1000 Defense: 2000 If this card is Normal or Special Summoned: You can add 1 "Icejade" Spell/Trap from your Deck to your hand

You can send 1 "Dragunity" card from your Spell & Trap Card Zone to the Graveyard to select 1 face-up monster your opponent controls

Set: World Championship Decks 2000 Type: Instant Rarity: Uncommon Cost: {4}{U} If an opponent controls a Forest and you control an Island

Set: Commander's Arsenal Type: Legendary Creature — Human Advisor Rarity: Rare Cost: {3}{R} {T}: Destroy target creature of your choice

Cower in Fear [Mystery Booster] Strike of Neos when an opponent's monster effectSet: Mystery Booster Type: Instant Rarity: Common Cost: {1}{B}{B} Creatures your opponents control get 1 1 until end of turn. "You will fully understand fear when you discover it is the final thing you put your faith in." Nicol Bolas