Vault

{t}: Put any number of your counters on Vault.
{t}, {x}: Put X mana counters on Vault.
{t}, X{e}: Put X energy counters on Vault.
{ut}, remove X non-mana, non-energy counters
from Vault: You got those counters.
{ut}, remove X mana counters from Vault:
add {x}.
{ut}, remove X energy counters from Vault:
add X{e}