Arid Tomb enters the battlefield tapped unless you pay 1 life.
: Add or to your mana pool.
: Add to your mana pool. Put Arid Tomb on top of your library.
: Arid Tomb becomes a 2/2 black Rogue creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put Arid Tomb on top of your library.: Arid Tomb becomes a 2/2 black Rogue creature until end of turn. It's still a land.
