Target spell or permanent becomes blue. (Mana symbols on that permanent remain unchanged.)
Illustrated by Mark Poole · Fourth Edition · #107
There are no rulings for Thoughtlace.
Target spell or permanent becomes colorless.
Target permanent becomes the color or colors of your choice. (This effect lasts indefinitely.)
Counter target spell that targets a permanent you control.
Choose one —
• Counter target red spell.
• Destroy target red permanent.
Counter target blue spell.
Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Tap target permanent.