Graven Steppe enters the battlefield tapped unless you reveal an artifact land card from your hand.
: Add or to your mana pool.
Put Graven Steppe on top of your library: Add to your mana pool.
, : Target Troll gets +2/+0 until end of turn.
: Add 
or 
to your mana pool.
to your mana pool. , : Target Troll gets +2/+0 until end of turn.
