Academy Journeymage — ruling 1

If you control more than one Wizard, Academy Journeymage's cost is reduced by only {1}.

Academy Journeymage — ruling 2

Once you announce that you're casting Academy Journeymage, no player may take other actions until the spell's been paid for. Notably, players can't try to raise the spell's cost by removing your Wizards.

Academy Journeymage : règles, fonctionnement et interactions (MTG)

Academy Journeymage 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

This spell costs less to cast if you control a Wizard. When this creature enters, return target creature an opponent controls to its owner's hand.

How it works : Academy Journeymage

Original English text — Wizards of the Coast / Scryfall

#1April 27, 2018· Wizards of the Coast
If you control more than one Wizard, Academy Journeymage's cost is reduced by only .
No other card is named in this ruling.
#2April 27, 2018· Wizards of the Coast
Once you announce that you're casting Academy Journeymage, no player may take other actions until the spell's been paid for. Notably, players can't try to raise the spell's cost by removing your Wizards.
No other card is named in this ruling.