(: Add or to your mana pool.)
At the beginning of your upkeep, Krosan Burrows deals 2 damage to target creature you control.
, : You gain 2 life.
, : Krosan Burrows deals 1 damage to target creature.
: Add 
or 
to your mana pool.)
, : You gain 2 life., : Krosan Burrows deals 1 damage to target creature.
