Chromatic Infusion-Emerald

Forest Infused —Your Commander must be Mono
Colored, and without a partner or background ( Put Chromatic Infusion-Emerald into your
Command Zone )
Add {x}{g} 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.
"Become one with Nature, Connect to the wildlife.
Let it Nourish You"
—Friendly Druid