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