wotc
The ability is a mana ability, so it is activated and resolves as a mana ability, but it can only be activated at times when you can cast an instant. Yes, this is a bit weird.
MTG · Card
◇ Catalog #271
Lion's Eye Diamond
DIGITAL ONLY
vma·#271·mythic·foil
Illus. Lindsey Look
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in vault
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for trade
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wishlisted
Jun '14
12 yr ago
Played in EDH
EDHrec rank #728 · Common include
Variants
Gameplay
Artifact
Discard your hand, Sacrifice this artifact: Add three mana of any one color. Activate only as an instant.
Held in the lion's eye
—Zhalfirin saying meaning "caught in the moment of crisis"
Legalities
tlrbanned
duelbanned
brawlnot legal
pennynot legal
PreDHlegal
Rulings · 1
Notes
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Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Lindsey Look
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
SourcesScryfall