Leanbox

{t}: Add {g}. Put a Share Counter on Leanbox.
{t}: Add {g}{g}. Activate only to cast a Leanbox spell or if you control a Leanbox Creature. Put 2 Share Counters on Leanbox.
{1}{g}{t}: Remove all Share Counters from Leanbox; Distribute these counters to any number of Leanbox Creatures you control that can have a Share Counter on it.