Crescendo of War — ruling 1

In a Two-Headed Giant game, the first ability triggers once during each team’s upkeep.

Crescendo of War : règles, fonctionnement et interactions (MTG)

Crescendo of War 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

At the beginning of each upkeep, put a strife counter on this enchantment. Attacking creatures get +1/+0 for each strife counter on this enchantment. Blocking creatures you control get +1/+0 for each strife counter on this enchantment.

How it works : Crescendo of War

Original English text — Wizards of the Coast / Scryfall

#1September 22, 2011· Wizards of the Coast
In a Two-Headed Giant game, the first ability triggers once during each team’s upkeep.
No other card is named in this ruling.