Printings
Diamond Lion
Card Information
Type: Artifact Creature — Cat
Mana Cost: 2
CMC: 2
Part of the Reserved List: No
Set: Modern Horizons 2 (MH2)
Rarity: Rare
Collector Number: 225
Oracle Text
{T}, Discard your hand, Sacrifice this creature: Add three mana of any one color. Activate only as an instant.
Format Legalities
Card Rulings
- June 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.
Source: wotc - June 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.
Source: wotc
Price History
To study a single card is to glimpse the heart of a spell - a frozen moment of ambition, artistry, and arcane intent. Within each glyph lies a spark: a story untold, a duel turned, a destiny altered. Treat it not as mere parchment, dear seeker, but as a shard of the Multiverse itself.