You tap it, untap it, tap it, untap it, and finally tap it again to tap all creatures with globe counters on them
Any "as [this permanent] enters the battlefield" or "[this permanent] enters the battlefield with" abilities of the permanent will also work
Results generated this way were much more interesting, even considering that they were vaguer
You may have this creature enter as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it
Nethroi's triggered ability can return any combination of creatures whose powers total 10 or less
Because it can be used to bounce back a land, it can keep folks from ever getting more lands in play than they have right now, barring an effect like Exploration or Explore that allows multiple lands to be dropped