Polymer Pits Snake Person

When Polymer Pits Snake Person enters, the
next time target equipped creature would die
this turn, attach target equipment card
attached to that creature to this creature.
Cold-blooded (At the beginning of your end
step, if this creature is untapped, tap it and
put a +1/+1 counter on it. Then, you may
untap it if you pay {1} for each +1/+1 counter
on it.)