Magical Hack (Retro) [30th Anniversary Edition] Elf Scout Whenever a commander you control

Whenever a commander you control enters the battlefield or attacks

target opponent exiles half their library

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

the Consulate was willing to overlook any previous transgressions

Magical Hack (Retro) [30th Anniversary Edition] Elf Scout Whenever a commander you controlSet: 30th Anniversary Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another. (For example, you may change "swampwalk" to "plainswalk." This effect lasts indefinitely.)