Berserk [International Collectors' Edition] War of the Spark Activate only during an opponent's

Activate only during an opponent's turn

(For example

"This exhibition of Nehra's Threshold Principle must be expropriated and examined for its potential applications in enforcement

Set: Fate Reforged Promos Type: Instant Rarity: Rare Cost: {4}{U}{U} Return target creature to its owner's hand

Berserk [International Collectors' Edition] War of the Spark Activate only during an opponent'sSet: International Collectors' Edition Type: Instant Rarity: Uncommon Cost: {G} Cast this spell only before the combat damage step. Target creature gains trample and gets +X +0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.