Chromatic Infusion-Jet

Swamp Infused —Your Commander must be
Mono Colored, and without a partner or
background ( Put Chromatic Infusion-Jet into your Command Zone )
Add {x}{b} to the mana cost of your commander,
where {x} is equal to the number of times it has
been cast from the command zone this game.
"In the Swamp you will learn Sacrifice, you will
feel Death, you will have Power"
—Unknown Voice