Diamond Lion

two generic mana Artifact Creature — CatPower and toughness2/2

tap this permanent , 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*

Showing Modern Horizons 2#225

Price

0.31 $

Foil 0.40 $

30 printings · up to 0.36 $

Daily estimate from Scryfall, not a shop quote.

2021-06-18
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.
2021-06-18
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.