(Brush-Grave isn't a spell.)
At the beginning of your upkeep, Brush-Grave deals 2 damage to target creature you control.
Sacrifice a land: You gain 1 life.
: Add or to your mana pool.
Sacrifice Brush-Grave: Add or to your mana pool.
: Add 
or 
to your mana pool. or to your mana pool.
