Unified Front
Sorcery
The kor's pride in their independence has given way to a strong sense of community that embraces all of Zendikar.
Rulings (5)
If a spell with a converge ability is copied, no mana was spent to cast the copy, so the number of colors of mana spent to cast the spell will be zero. The number of colors spent to cast the original spell is not copied.
Unless a spell or ability allows you to, you can’t choose to pay more mana for a spell with a converge ability just to spend more colors of mana. Likewise, if a spell or ability reduces the amount of mana it costs you to cast a spell with converge, you can’t ignore that cost reduction in order to spend more colors of mana.
If you cast a spell with converge without spending any mana to cast it (perhaps because an effect allowed you to cast it without paying its mana cost), then the number of colors spent to cast it will be zero.
Legality
Formats by platform
