Run Behind — ruling 1

To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Run Behind's first ability). The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.

Run Behind : règles, fonctionnement et interactions (MTG)

Run Behind 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

This spell costs less to cast if it targets an attacking creature. Target creature's owner puts it on their choice of the top or bottom of their library.

How it works : Run Behind

Original English text — Wizards of the Coast / Scryfall

#1March 20, 2026· Wizards of the Coast
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Run Behind's first ability). The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.
No other card is named in this ruling.

Legal formats

standardfuturehistorictimelessgladiatorpioneermodernlegacypaupervintagepennycommanderoathbreakerstandardbrawlbrawlcompetitivebrawlalchemypaupercommanderduel

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