Egg Chamber

Enchanted land has {t}: add {b} to your mana pool.
When Egg Chamber comes into play, put three counters on enchanted land.
{b}{t}, Remove a counter from enchanted land: Put
a 0/1 egg token into play. At the beginning of your next upkeep, sacrifice all egg tokens you control and
put that many 1/1 Face Hugger tokens with chest
burst onto the battlefield.