Ghor-Clan Bloodscale — ruling 1

If this card's ability is activated by one player, then another player takes control of it on the same turn, the second player can't activate its ability that turn.

Ghor-Clan Bloodscale : règles, fonctionnement et interactions (MTG)

Ghor-Clan Bloodscale 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

First strike : This creature gets +2/+2 until end of turn. Activate only once each turn.

How it works : Ghor-Clan Bloodscale

Original English text — Wizards of the Coast / Scryfall

#1February 1, 2006· Wizards of the Coast
If this card's ability is activated by one player, then another player takes control of it on the same turn, the second player can't activate its ability that turn.
No other card is named in this ruling.