Temur Battle Rage — ruling 1

If an attacking creature with double strike and trample destroys all of its blocking creatures with first-strike combat damage, all of its normal combat damage is assigned to the player, planeswalker, or battle that creature's attacking.

Temur Battle Rage — ruling 2

Temur Battle Rage checks whether you control a creature with power 4 or greater as it resolves. If you do, the target creature has trample until end of turn even if you no longer control a creature with power 4 or greater later in the turn.

Temur Battle Rage : règles, fonctionnement et interactions (MTG)

Temur Battle Rage 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

Target creature gains double strike until end of turn. Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

How it works : Temur Battle Rage

Original English text — Wizards of the Coast / Scryfall

#1July 28, 2023· Wizards of the Coast
If an attacking creature with double strike and trample destroys all of its blocking creatures with first-strike combat damage, all of its normal combat damage is assigned to the player, planeswalker, or battle that creature's attacking.
No other card is named in this ruling.
#2March 19, 2021· Wizards of the Coast
Temur Battle Rage checks whether you control a creature with power 4 or greater as it resolves. If you do, the target creature has trample until end of turn even if you no longer control a creature with power 4 or greater later in the turn.
No other card is named in this ruling.