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Trespasser's Curse 

Enchantment — Aura Curse
Amonkhet Common
Enchant player
Whenever a creature enters the battlefield under enchanted player's control, that player loses 1 life and you gain 1 life.
Whenever a creature enters the battlefield under enchanted player's control, that player loses 1 life and you gain 1 life.
Even in the relative safety of the city, there are places best left undisturbed.
#112 — Illus. David Palumbo