If this artifact would enter, you may discard a land card instead. If you do, put this artifact onto the battlefield. If you don't, put it into its owner's graveyard.
{T}: Add one mana of any color.
Mana cost
0
Mana value
0
Printings
From
$1155.23
EDHREC rank
#246
Reserved list
Never reprinted
Game changer
Counts toward a deck's bracket
Buy
Formats
Legacy
Legal
Vintage
Legal
Commander
Legal
Duel
Banned
Tlr
Banned
Rulings
1 May 2008
If you don't discard a land card, Mox Diamond never enters. It won't trigger abilities that look for something entering, and you won't get the opportunity to tap it for mana.