When Remote Ampitheater enters the battlefield, sacrifice it unless you pay .
: Add or to your mana pool.
Sacrifice Remote Ampitheater: Add or to your mana pool.
, : Target Goblin Troll gets +2/+0 until end of turn.
.
: Add 
or to your mana pool. or to your mana pool.
, : Target Goblin Troll gets +2/+0 until end of turn.
