Academy Journeymage
Creature — Human Wizard
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.
"We don't choose who comes here. We choose how long they stay."
Magali Villeneuve
The List (PLST)
• #DOM-41Rulings
If you control more than one Wizard, Academy Journeymage's cost is reduced by only {1}.
(wotc • 2018-04-27)
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.
(wotc • 2018-04-27)
Rulings
If you control more than one Wizard, Academy Journeymage's cost is reduced by only {1}.
(wotc • 2018-04-27)
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.
(wotc • 2018-04-27)