For example, if the creature card returned by Defossilize is somehow not a creature once it's on the battlefield, it can still explore
If a card copied by one of the tokens had any "when [this permanent] enters the battlefield" abilities, then the token also has those abilities and will trigger them when it's created
Furthermore, it also can negate the effect of an opponent's monster and take control of it once per turn by detaching a material from it
Funnily enough, Samurott could use a partner like that Blastoise, as its attack scales with attached energy, but its primary purpose will be its ability to swap out both actives for free every turn
Whatever the best or most crucial land in your deck is, Crop Rotation will find that for you, and the land it puts in the graveyard is usually relevant too