(Krosan Mesa isn't a spell.)
When Krosan Mesa enters the battlefield, you lose 1 life unless you reveal a Red card from your hand.
, : Look at target player's hand.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
, 
: Look at target player's hand.: Add to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.
