At the beginning of your end step, if you didn't cast any spells this turn, Goblin Cavern deals 1 damage to you.
: Add or to your mana pool.
: Goblin Cavern becomes a 2/1 red and black Shaman creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.: Goblin Cavern becomes a 2/1 red and black Shaman creature until end of turn. It's still a land.
