If a targeted permanent has indestructible or regenerates, its controller won't get an Elephant token for it. Similarly, if the targeted permanent is destroyed but a replacement effect moves it to a different zone instead of its owner's graveyard, its controller won't get an Elephant token for it.
2013-07-01 • wotc
The targeted permanents may be controlled by different players.
2010-03-01 • wotc