Natura, the Last Cycle

Natura, the Last Cycle's power and toughness are equal to the amount of lands you control.
When Natura, the Last Cycle enters the battlefield, each land you control perpetually
gets "{t}: gain one life".
When Natura, the Last Cycle dies, transform Natura, the Last Cycle into five 1/1 Hamadryads
onto the battlefield that have "{t}: Add {g}{w}".