Lady Manabite

Deathtouch
{b} and {g} mana in your mana pool does not empty from your manapool between phases.
Lady Manabite`s power is equal to the amount of {b} mana in your manapool, and her toughness is equal to the amount of {g} mana in your mana pool.
Tap an untapped snake you control: Add {b} or {g} to your manapool.