Satoru Gojo, The Honored One

Prowess (Whenever you cast a noncreature
spell, this creature gets +1/+1 until end of turn.)

Whenever you cast a noncreature spell,
you may pay {r/w}{r/w}. If you do, target creature
gains double strike until end of turn.

"Throughout Heaven and Earth, I Alone Am
The Honored One"