Whenever Caves Lowlands becomes tapped, it deals 1 damage to you.
: Add or to your mana pool.
: Add to your mana pool. Put Caves Lowlands on top of your library.
At the beginning of your upkeep, sacrifice a Horror.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put Caves Lowlands on top of your library.
