Slagheap Karst enters the battlefield tapped.
: Add or to your mana pool.
Put Slagheap Karst on top of your library: Add to your mana pool.
: Slagheap Karst becomes a 2/2 red and green Ogre creature with trample until end of turn. It's still a land.
: Add 
or 
to your mana pool.
to your mana pool. 
: Slagheap Karst becomes a 2/2 red and green Ogre creature with trample until end of turn. It's still a land.
