Berserk [Alpha Edition] Dinosaur Set: Mirrodin Type: Artifact —

Set: Mirrodin Type: Artifact — Equipment Rarity: Rare Cost: {2} Equipped creature gets +2/+2

but it is predictable

Set: Dragon's Maze Promos Type: Instant Rarity: Rare Cost: {W}{U}{U} Counter target spell

{0}: Sacrifice Knowledge Vault

that player owns Bronze Tablet and you own the other exiled card

Berserk [Alpha Edition] Dinosaur Set: Mirrodin Type: Artifact —Set: Alpha 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.