The card has never been coded.
The artwork is there because when I recompiled the manalink2 card art folder I just replaced all the existing artwork in the folder with HQ images, and some of the artwork for the uncoded Microprose cards was already there - presumably, because they had been included in the original game for coding at a later date.
All this unused artwork was simply transferred over to the Manalink3 card art folder when we recompiled the artwork with the new image naming format.
There's also some other currently unused artwork in the folder which I chose to edited all the available artwork for whilst we were compiling the Manlink3 folder (flip/split, tokens, emblems, animated). The artwork for these card types needs custom editing and it was just easier to do it all in one go rather than having to edit individual cards when required.
Gargaroz has done a good job coding many of the cards now , but some unused artwork remains in case we do find a way of coding some of them later - as with the old uncoded Microprose stuff.
Although,
Enchantment Alteration would be nice from the old stuff. Hint, hint.