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 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.
The maximum number of colors of mana you can spend to cast a spell is five. Colorless is not a color. Note that the cost of a spell with converge may limit how many colors of mana you can spend.
Last observed on Scryfall 2 months ago at $0.10. Over the trailing 90 days the price moved between $0.03 and $0.10 across 57 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from MH2 — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #164 of *Modern Horizons 2*, the set that shipped alongside the June 2021 Modern Horizons 2 release.
Card type: Creature — Plant, color identity green, printed at uncommon. Uncommons fill the middle-tier slots in a standard booster configuration. Mana cost: {4}{G} (5 converted). Keyword abilities: Converge.
Legal in Modern, Legacy, Vintage, and Commander.
EDHrec ranks this card #25,139 in Commander, putting it in the fringe-play tier of the format's playable pool.
Illustrated by Joe Slucher. Rarix catalogs 210 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Joe Slucher
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
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.
If there are any alternative or additional costs to cast a spell with a converge ability, the colors of mana spent to pay those costs will count.
