Contamination [Urza's Saga] POP Series 9 yet it opened many doors

yet it opened many doors

{T}: Each player draws a card

you can add 1 Blackwing monster from your Deck to your hand that has less ATK than that monster

Set: Duel Terminal - Preview Card type: Effect Monster Rarity: Common Attack: 300 Defense: 200 During your opponent's Battle Phase

Set: Tactical Evolution Card type: Effect Monster Rarity: Ultimate Rare Attack: 1800 While this card is face-up on the field

Contamination [Urza's Saga] POP Series 9 yet it opened many doorsSet: 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.