The number of charge counters on Chalice of the Void matters only at the time the spell is cast. Changing the number of charge counters on Chalice of the Void after a spell has been cast won't change whether the ability triggers or counters the spell.
If there are zero charge counters on Chalice of the Void, it counters each spell with a mana value of 0. This includes face-down creature spells cast with morph's alternative cost.
A mana cost of {X}{X} means that you pay twice X. For example, if you want X to be 3, you pay {6} to cast Chalice of the Void.
Last observed on Scryfall 2 months ago at $13.87. Over the trailing 90 days the price moved between $3.90 and $17.42 across 57 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from A25 — 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 #222 of *Masters 25*, the set that shipped alongside the March 2018 Masters 25 release.
Card type: Artifact, printed at mythic. Mythic rares historically land in roughly one out of every eight boosters at standard print densities. Mana cost: {X}{X} (0 converted).
Legal in Modern, Legacy, Commander, and Historic. Banned in Brawl. Restricted in Vintage.
EDHrec ranks this card #9,023 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Mark Zug. Rarix catalogs 838 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Mark Zug
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
Chalice of the Void has to be on the battlefield at the end of casting a spell for the ability to trigger. If you sacrifice Chalice of the Void as a cost to cast a spell, its ability can't trigger. However, if it leaves the battlefield once its ability has triggered, that ability will still counter the spell.
