Community
Diamond Lion
Artifact Creature — Cat
tap , Discard your hand, Sacrifice this creature: Add three mana of any one color. Activate only as an instant.
"The merchant asked for riches no one had ever dreamed of. The djinn, smiling, granted his wish." —Afari, *Tales*
Rulings (2)
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.
Jun 18, 2021
Legality
Formats by platform
Commander
Competitive
Community & retro
Printings (5)
MH2#225$0.33
Modern Horizons 2
PRM#91371—
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