Complex sentence: The basic elementals (earth, air, water and fire) do not appear until "Monster Manual 3" (2010); in this edition, elementals can come in almost any shape, size, and composition imaginable.
Split into simpler sentences: The basic elementals (earth, air, water and fire) do not appear until "Monster Manual 3" (2010). Wizards of the Coast, 2010 In this edition, elementals can come in almost any shape, size, and composition imaginable.