Sonic, the Blue Blur

Start you engines!

Whenever your speed increases, create a Gold Ring token. It’s an artifact with “Sacrifice this token: Add two mana of any color.”

Whenever Sonic is dealt damage, your speed decreases by 1. This ability can only trigger once each turn.

Max Speed!— Once you reach max speed, Sonic gains your choice of prowess, firststrike, or indestructible.