Parapet

Enchantment    (CMC:2)

You may choose to play Parapet as an instant; if you do, bury it at end of turn. All creatures you control get +0/+1.

There is no wall that can't be improved by making it taller.

VI • ENMark Poole

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Legal in: Mirage Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

10/1/2009
The sacrifice occurs only if you cast it using its own ability. If you cast it using some other effect (for instance, if it gained flash from Vedalken Orrery), then it won't be sacrificed.