Core Prowler
Mirrodin Besieged — Uncommon
Artifact Creature — Phyrexian Horror
Sets Core Prowler has been printed in:

Mirrodin Besieged — Uncommon
Artifact Creature — Phyrexian Horror
Sets Core Prowler has been printed in:

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Creature — Human Shaman // Enchantment — Aura Curse (4/2)
Spells your opponents cast that target Accursed Witch cost less to cast.
When Accursed Witch dies, return it to the battlefield transformed under your control attached to target opponent.
Infectious Curse
Enchant player
Spells you cast that target enchanted player cost less to cast.
At the beginning of enchanted player's upkeep, that player loses 1 life and you gain 1 life.
Creature — Phyrexian Rat (2/2)
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
When Blightbelly Rat dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Creature — Phyrexian Goblin Warrior (1/1)
Whenever Cacophony Scamp deals combat damage to a player, you may sacrifice it. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
When Cacophony Scamp dies, it deals damage equal to its power to any target.
Creature — Phyrexian Horror (4/4)
When Gulping Scraptrap enters or dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Creature — Phyrexian Knight (4/3)
When Infected Defector dies, incubate 3. (Create an Incubator token with three +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)
Enchantment — Aura
Enchant creature
Enchanted creature gets +2/+1, has haste, and attacks each combat if able.
When enchanted creature dies, you may search your library for a card named Infectious Bloodlust, reveal it, put it into your hand, then shuffle.
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