Grindstone
Artifact
, 
: Target player mills two cards. If two cards that share a color were milled this way, repeat this process.
"Memory is a burden that wears at the soul as weather wears at stone." —Crovax
Greg Simanson
Tempest Remastered (TPR)
• #223Rulings
The process can repeat any number of times, as long as two cards that share a color are milled each time.
(wotc • 2024-04-12)
If the two cards are both colorless, then the effect does not repeat. It only repeats if both cards have at least one color and at least one color is shared between them.
(wotc • 2004-10-04)
Rulings
The process can repeat any number of times, as long as two cards that share a color are milled each time.
(wotc • 2024-04-12)
If the two cards are both colorless, then the effect does not repeat. It only repeats if both cards have at least one color and at least one color is shared between them.
(wotc • 2004-10-04)