CascadeCascade
Diamond Lion

Diamond Lion

{2}

Artifact Creature — Cat

{T}, Discard your hand, Sacrifice Diamond Lion: Add three mana of any one color. Activate only as an instant.

2/2

Illustrated by

Modern Horizons 2Modern Horizons 2#470·Rare·English
Oct 22, 2026
Market$0.32
Median$0.42
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Legality

LegalCommanderNot legalStandardLegalModernNot legalPremodernLegalLegacyLegalVintageNot legalBrawlNot legalPioneer
LegalOathbreaker
Not legalPauperNot legalHistoric
Not legalTimeless

Rulings

Jun 18, 2021

Even though you can only activate this as an instant, it is still a mana ability. It doesn’t use the stack and cannot be responded to.

Jun 18, 2021

You can’t cast an instant (or activate an ability as an instant) while casting a spell. Therefore, much like Lion’s Eye Diamond, you can’t activate the ability intending to use the mana to cast a spell from your hand.