Entreial, Dragon's Valley

Protection from enchantments and instants
{t}: Add {r/g}{r/g} to your mana pool
{r/g}{r/g}: Put a Civilization counter on Entreial,
Dragon's Valley.
{r/g}{r/g}: Remove a Civilization counter from
Entreial, Dragon's Valley. Create 6 0/0 red and
green dragon tokens with flying. Divide 6 +1/+1
counters across any number of Dragons you
control. Draw a card.