Glyph of Delusion

Instant, U (1)
Put X glyph counters on target creature that target Wall blocked this turn, where X is the power of that blocked creature. The creature gains "This creature doesn't untap during your untap step if it has a glyph counter on it" and "At the beginning of your upkeep, remove a glyph counter from this creature."¹
Illus. Susan Van Camp

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Can be cast at any time after the wall blocked a creature and can affect any creature that the wall was assigned to block or that was blocked by the wall due to being in a band or by being switched into or out of the block by an ability.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/2)	Legends (Common)