Lunar Mystic
Creature — Human Wizard
Whenever you cast an instant spell, you may pay 
. If you do, draw a card.
"I'm pleased this world has learned the moon affects more than the tides." —Tamiyo, the Moon Sage
Wesley Burt
Commander 2020 (C20)
• #115Rulings
The triggered ability will go on the stack on top of the instant spell and resolve before it.
(wotc • 2012-05-01)
The decision to pay {1} is made when the triggered ability resolves. It’s not an additional cost of the instant spell.
(wotc • 2012-05-01)
Rulings
The triggered ability will go on the stack on top of the instant spell and resolve before it.
(wotc • 2012-05-01)
The decision to pay {1} is made when the triggered ability resolves. It’s not an additional cost of the instant spell.
(wotc • 2012-05-01)