Contamination [Urza's Saga] Forest Dryad {T}: Counter target activated ability

{T}: Counter target activated ability from an artifact source unless that ability's controller pays {W}

it's an artifact creature with power and toughness each equal to its converted mana cost

for its purpose is far more important than my own

"They're gone

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {2} Time Vault enters the battlefield tapped

Contamination [Urza's Saga] Forest Dryad {T}: Counter target activated abilitySet: Urza's Saga Type: Enchantment Rarity: Rare Cost: {2}{B} At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature. If a land is tapped for mana, it produces {B} instead of any other type and amount.