Horizon Chamber enters the battlefield tapped.
, : Add , or to your mana pool. Horizon Chamber deals 1 damage to you.
: Horizon Chamber becomes a 2/1 white and blue Soldier creature until end of turn. It's still a land.
, 
: Add 
, 
or to your mana pool. Horizon Chamber deals 1 damage to you.: Horizon Chamber becomes a 2/1 white and blue Soldier creature until end of turn. It's still a land.
