Tome of the Guildpact — ruling 1

Tome of the Guildpact’s ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.

Tome of the Guildpact : règles, fonctionnement et interactions (MTG)

Tome of the Guildpact 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 you cast a multicolored spell, draw a card. : Add one mana of any color.

How it works : Tome of the Guildpact

Original English text — Wizards of the Coast / Scryfall

#1January 25, 2019· Wizards of the Coast
Tome of the Guildpact’s ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
No other card is named in this ruling.