毒契
结界
，牺牲毒契：消灭所有总法术力费用等于或小于X的神器、生物和结界。
standard
future
historic
gladiator
pioneer
modern
legacy
pauper
vintage
penny
commander
brawl
alchemy
paupercommander
duel
oldschool
premodern
Rulings
A token has a converted mana cost of 0 unless it is copying something else.
If a permanent has in its mana cost, X is considered to be 0.
If a permanent has in its mana cost, X is considered to be 0.
Rulings
A token has a converted mana cost of 0 unless it is copying something else.
If a permanent has in its mana cost, X is considered to be 0.
If a permanent has in its mana cost, X is considered to be 0.
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