crow-beak automaton

clockwork mana ({p/c} on this card cost {1} each.
reduce 1 {p/c} in each instance on this card,
including its cost, from {1} to {0} for each other
permanent with clockwork mana).
if you cast this card for {0} put a +1/+1 counter
on it.
{p/c}{p/c}{p/c}: put a +1/+1 counter on this
creature, use this ability only once per turn.