When Goblin Copse enters the battlefield, sacrifice it unless you pay .
: Add or to your mana pool.
Put Goblin Copse on top of your library: Add to your mana pool.
: Target 1/1 creature gets +1/+0 until end of turn.
.
: Add 
or to your mana pool.
to your mana pool. : Target 1/1 creature gets +1/+0 until end of turn.
