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Legality
| Format | Legality |
| 1v1 Commander | Legal |
| Archenemy | Legal |
| Big Apple Highlander | Legal |
| Block Constructed | Legal |
| Canadian Highlander | Legal |
| Casual | Legal |
| Commander / EDH | Legal |
| Commander: Rule 0 | Legal |
| Custom | Legal |
| Duel Commander | Legal |
| Freeform | Legal |
| Highlander | Legal |
| Legacy | Legal |
| Leviathan | Legal |
| Limited | Legal |
| Oathbreaker | Legal |
| Planar Constructed | Legal |
| Planechase | Legal |
| PreDH | Legal |
| Premodern | Legal |
| Quest Magic | Legal |
| Vanguard | Legal |
| Vintage | Legal |
Jade Leech
Creature — Leech
Green spells you cast cost {{G}} more to cast.
legendofa on Chalice of the void vs …
5 years ago
The simplest answer is that what you pay for a spell is not always equal to the converted mana cost/mana value.
The mana value, until recently called converted mana cost, is an inherent and unchangeable property of a card. It's generally found by taking the generic mana cost in the top right corner, then adding 1 for each colored mana symbol.
What you actually pay for a spell is very changeable. It can be increased by cards like Jade Leech , decreased by cards like Thornscape Familiar , or changed completely by cards like Fist of Suns . None of these affect the CMC/MV number.
Chalice of the Void checks the inherent and unchanging mana value, not what was actually paid.