Defensive Formation — ruling 1

Damage assignment choices from Trample and other things which allow alternative damage assignments for attacking creatures are all made by you.

Defensive Formation : règles, fonctionnement et interactions (MTG)

Defensive Formation 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

Rather than the attacking player, you assign the combat damage of each creature attacking you. You can divide that creature's combat damage as you choose among any of the creatures blocking it.

How it works : Defensive Formation

Original English text — Wizards of the Coast / Scryfall

#1October 4, 2004· Wizards of the Coast
Damage assignment choices from Trample and other things which allow alternative damage assignments for attacking creatures are all made by you.
No other card is named in this ruling.