Artefact
Indestructible
Une fois par tour, vous pouvez payer

à la place du coût de mana d'un sort incolore que vous lancez depuis votre main.
If you cast a card for an alternative cost of
, you can't pay any other alternative costs. You can, however, pay additional costs like kicker. If the card has any mandatory additional costs, you must pay those.
You must still follow any relevant timing rules for the colorless spell you cast from your hand.