Cloak-O-Nut

Cloak-O-Nut enters the battlefield tapped with
2 time counters and doesn't untap during your
untap step. At the beginning of your end step,
add a time counter to Cloak-O-Nut. Then, if it
has 3, remove them and untap Cloak-O-Nut.
{t}: {c} {c} {c} {c}