Hum of the Radix (Mirrodin #122)

Hum of the Radix {2}{G}{G}

Enchantment

Each artifact spell costs {1} more to cast for each artifact its controller controls.

Illustrated by John Avon

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny