Blood-Cursed Knight — ruling 1

If you cast an Aura spell targeting a creature controlled by an opponent, you still control that Aura. It will count for Blood-Cursed Knight’s ability.

Blood-Cursed Knight : règles, fonctionnement et interactions (MTG)

Blood-Cursed Knight 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

As long as you control an enchantment, this creature gets +1/+1 and has lifelink. (Damage dealt by this creature also causes you to gain that much life.)

How it works : Blood-Cursed Knight

Original English text — Wizards of the Coast / Scryfall

#1June 22, 2015· Wizards of the Coast
If you cast an Aura spell targeting a creature controlled by an opponent, you still control that Aura. It will count for Blood-Cursed Knight’s ability.
No other card is named in this ruling.