Atoseta's Verdant Reflection

Partner with Atoseta's Mystic Reflection
If you would lose unspent mana during your
turn, remove all charge counters from Atoseta's
Verdant Reflection, then put a charge counter on
it for each unspent green mana you have. Then if
it isn't your end step, that mana becomes green
instead. Otherwise, you lose that mana.
Atoseta's Verdant Reflection gets +1/+1 for each
charge counter on it.