Whenever Graven Key becomes tapped, it deals 1 damage to you.
: Add or to your mana pool.
Put Graven Key on top of your library: Add to your mana pool.
: Graven Key becomes a 2/1 red and blue Dwarf creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.
to your mana pool. : Graven Key becomes a 2/1 red and blue Dwarf creature until end of turn. It's still a land.
