Saving Fire

Place a creature onto the battle field without paying the mana cost.
'"We've got to have special people for looking after the fire. Any day there may be a ship out there" - he waved his arm at the taut wire of the horizon - "and if we have a signal going they'll come and take us off. And another thing. We ought to have more rules. Where the conch is, that's a meeting. The same up here as down there." The fire is key for they're rescue.'