Grindstone

Artifact, 1 (1)
{3}, {T}: Put the top two cards of target player's library into that player's graveyard. If both cards share a color, repeat this process.¹
"Memory is a burden that wears at the soul as weather wears at stone." -Crovax
Illus. Greg Simanson

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: 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.
• 10/4/2004: The effect repeats as many times as it takes to meet the end condition.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Tempest (Rare)