Anisocytosis

{t} Gain one mana of each color
Every creature in this world comes in a variety of shapes and sizes. If you take a look to my left you'll see some red
blood cells playing in the forest over yonder. The difference in sizes comes from varying diseases such as anemias, thalassemia, and vitamin deficiency. Look
over there, that small one is going down the slide, isn't
life fascinating?