When Scrub Ruins enters the battlefield, sacrifice it unless you pay 3 life.
: Add or to your mana pool.
Sacrifice Scrub Ruins: Add or to your mana pool.
, : Target player reveals the top card of his or her library.
: Add 
or 
to your mana pool. or to your mana pool.
, : Target player reveals the top card of his or her library.
