(: Add or to your mana pool.)
Obsidian Mountain enters the battlefield tapped unless you control two or more creatures.
, , Sacrifice Obsidian Mountain: Put a -1/-1 counter on target creature.
, : Target red creature gains haste until end of turn.
: Add 
or 
to your mana pool.), , Sacrifice Obsidian Mountain: Put a -1/-1 counter on target creature.
, : Target red creature gains haste until end of turn.
