Grass-Pool enters the battlefield tapped unless you pay .
, : Add , or to your mana pool. Grass-Pool deals 1 damage to you.
, , Sacrifice Grass-Pool: Target player gets a poison counter.
.
, 
: Add , 
or to your mana pool. Grass-Pool deals 1 damage to you., , Sacrifice Grass-Pool: Target player gets a poison counter.
