Razorverge Barrens enters the battlefield tapped.
: Add or to your mana pool.
Sacrifice Razorverge Barrens: Add or to your mana pool.
, : Razorverge Barrens deals 1 damage to target attacking creature.
: Add 
or 
to your mana pool. or to your mana pool., : Razorverge Barrens deals 1 damage to target attacking creature.
