Naga Fleshcrafter

If a card with a renew ability is put into your graveyard during your turn, you can activate that ability if it’s legal to do so before any other player can take any actions.

If the copied creature is copying something else, then Naga Fleshcrafter enters as whatever that creature copied. Similarly, its renew ability will cause each other creature you control to become a copy of whatever that creature copied.

Any “enters” abilities of the copied creature will trigger when Naga Fleshcrafter enters. Any “as this creature enters” or “this creature enters with” abilities of the copied creature will also work. Activating its renew ability doesn’t cause any creatures to enter the battlefield, and as such, these kinds of abilities won’t work with Naga Fleshcrafter’s renew ability.