Berserk [International Collectors' Edition] Spirit Advisor Set: Zendikar Type: Instant —

Set: Zendikar Type: Instant — Trap Rarity: Mythic Cost: {2}{U}{U} If an opponent cast three or more spells this turn

Set: Kaladesh Type: Legendary Land Rarity: Rare At the beginning of your upkeep

and made into more junk

Set: POP Series 2 Type: Fighting Rarity: Common Retreat cost: Colorless

you might as well trade it for something else

Berserk [International Collectors' Edition] Spirit Advisor Set: Zendikar Type: Instant —Set: 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.