Tibor and Lumia — ruling 1

A spell you cast that's blue and red will trigger both abilities. You can put them on the stack in either order.

Tibor and Lumia : règles, fonctionnement et interactions (MTG)

Tibor and Lumia 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 blue spell, target creature gains flying until end of turn. Whenever you cast a red spell, Tibor and Lumia deals 1 damage to each creature without flying.

How it works : Tibor and Lumia

Original English text — Wizards of the Coast / Scryfall

#1February 1, 2006· Wizards of the Coast
A spell you cast that's blue and red will trigger both abilities. You can put them on the stack in either order.
No other card is named in this ruling.