Empty Child

{t}: Put a gas-mask counter on target creature.
As long as the creature has a gas-mask counter
on it, it is 1/1 and has "At the beginning of your
upkeep you lose 1 life" unless that creature is
a human in which case it
becomes an Empty token
that is under your control.
When The Empty Child leaves the battlefield,
remove all gas-mask counters.
Are you my mummy?