Lace

The laces are a rare cycle of five instants that originally appeared in the Alpha through 4th Edition core sets. Each would change a spell or permanent to a particular color. They were originally interrupts.

In color wheel order by color,

• White: Purelace
• Blue: Thoughtlace
• Black: Deathlace
• Red: Chaoslace
• Green: Lifelace

They weren't highly sought after rares by any means and were thought to be novelty cards use primarily to change a card so as not to be able to be blocked by a creature with protection from a particular color. Prismatic Lace from Mirage is an improved version of the entire cycle being able to change a spell or permanent to a color of the caster's choice. Moonlace from the time twisting set Time Spiral turned a spell or permanent colorless. All of the changes are permanent.