Curse of Stalked Prey — ruling 1

The ability will trigger when any creature deals combat damage to the enchanted player, including one controlled by another opponent or even by the enchanted player (if combat damage gets redirected somehow).

Curse of Stalked Prey : règles, fonctionnement et interactions (MTG)

Curse of Stalked Prey is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Enchant player Whenever a creature deals combat damage to enchanted player, put a +1/+1 counter on that creature.

How it works : Curse of Stalked Prey

Original English text — Wizards of the Coast / Scryfall

#1September 22, 2011· Wizards of the Coast
The ability will trigger when any creature deals combat damage to the enchanted player, including one controlled by another opponent or even by the enchanted player (if combat damage gets redirected somehow).
No other card is named in this ruling.