As wild and untamed as the Roil from which it was born.

Commander Masters

Omnath, Locus of Mana

You don't lose unspent green mana as steps and phases end.
Omnath, Locus of Mana gets +1/+1 for each unspent green mana you have.

You don't lose unspent green mana as steps and phases end.
Omnath gets +1/+1 for each unspent green mana you have.

From the Roil emerged a ravenous primordial being of pure mana.

Green mana doesn't empty from your mana pool as steps and phases end.
Omnath, Locus of Mana gets +1/+1 for each green mana in your mana pool.