Thalia, Guardian of Thraben

Legendary Creature — Human Soldier

First strike
Noncreature spells cost more to cast.

2/1

2018-03-16:
Thalia's ability affects each spell that's not a creature spell, including your own.
2018-03-16:
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.