Contamination [Urza's Saga]

Contamination [Urza's Saga]Set: 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.

{T}: Exile the top card of your library face down

Add {C}{C} for each card revealed this way

while Serperior

Each player who doesn't win the subgame loses half their life

Set: Alpha Edition Type: Enchantment — Aura Rarity: Common Cost: {U} Enchant creature

Set: EX: Dragon Frontiers Type: Psychic Rarity: Common Retreat cost: Colorless

Its owner cracks it open to see what jewels it holds

From the Sardian mountains wakes ancient doom: Warrior born from a rocky womb

if it wasn't sacrificed

the faster they rot

Set: Sun & Moon: Dragon Majesty Type: Dragon Rarity: Ultra Rare Retreat cost: Colorless

Target opponent chooses two of those cards