Alternatively, you can tap it to return a card you exiled with Gustha's Scepter to your hand
They don't untap during their controllers' next untap steps
It's possible put a +1/+1 counter on a creature with a -1/-1 counter on it and then give it a second +1/+1 counter
Honorable Mention: Ditto Ditto collectors know and love this entry from Skyridge, and while this card, in particular, does not compare to the recognizability and monetary value of those that will come later on this list, it deserves some time in the spotlight too
Three main ways: going wide with tokens and an overrun or Coat of Arms, draining the table with Gray Merchant of Asphodel and aristocrats triggers, or grinding opponents out of resources through endless recursion until they cant keep up
Golgari Thug was the first creature we tried, since when it died we could put a copy of Kokusho on top of our library to draw and cast the next turn