A deck can have any number of cards named Persistent Petitioners
Set: Expedition: Base Set Type: Psychic Rarity: Rare Retreat cost: Colorless
Set: Arena League 1996 Type: Basic Land — Forest Rarity: Rare ({T}: Add {G}
Set: World Championships 2009 Type: Psychic Rarity: Rare Retreat cost: Colorless
Set: Fourth Edition (Foreign Black Border) Type: Creature — Specter Rarity: Uncommon Cost: {1}{B}{B} Flying
Mishra, Claimed by Gix [The Brothers' War Prerelease Promos] 98b A deck can have anySet: The Brothers' War Prerelease Promos Type: Legendary Creature Phyrexian Human Artificer Rarity: Mythic Cost: {2}{B}{R} Whenever you attack, each opponent loses X life and you gain X life, where X is the number of attacking creatures. If Mishra, Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking, and you both own and control them, exile them, then meld them into Mishra, Lost to Phyrexia. It enters the battlefield tapped and