Ruinous Minotaur — ruling 1

Ruinous Minotaur’s ability triggers when it deals any kind of damage to an opponent, not just combat damage.

Ruinous Minotaur — ruling 2

You sacrifice a land, not the opponent who was dealt damage.

Ruinous Minotaur : règles, fonctionnement et interactions (MTG)

Ruinous Minotaur 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

Whenever this creature deals damage to an opponent, sacrifice a land.

How it works : Ruinous Minotaur

Original English text — Wizards of the Coast / Scryfall

#1October 1, 2009· Wizards of the Coast
Ruinous Minotaur’s ability triggers when it deals any kind of damage to an opponent, not just combat damage.
No other card is named in this ruling.
#2October 1, 2009· Wizards of the Coast
You sacrifice a land, not the opponent who was dealt damage.
No other card is named in this ruling.