From jungle to sea, from sea to stone, from stone to field, from field to bone. What am I?
—Zhalfirin riddle

Ersatz Gnomes

{T}: Target spell becomes colorless.
{T}: Target permanent becomes colorless until end of turn.

The List

Mirage

oc
T: Target spell is colorless. Play this ability as an interrupt.
oc
T: Target permanent is colorless until end of turn.

If Ersatz Gnomes targets a spell that becomes a permanent, the permanent will enter the battlefield colorless and will remain colorless until it leaves the battlefield (or until another effect changes its color).