Corrosion [Visions] Oldschool and first strike

and first strike

As Sacred Foundry enters the battlefield

−3: Target creature gets +X/+X or -X/-X until end of turn

−7: Exile the top ten cards of your library

Corrosion [Visions] Oldschool and first strikeSet: Visions Type: Enchantment Rarity: Rare Cost: {1}{B}{R} Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) At the beginning of your upkeep, put a rust counter on each artifact target opponent controls. Then destroy each artifact with mana value less than or equal to the number of rust counters on it. Artifacts destroyed this way