The Whiteboarder
{1}{U}Legendary Creature — Human Wizard
White-bordered creatures you control get +1/+1. Whenever you cast a creature spell, note its power, toughness, or one of its abilities. (Perhaps write on something you can reuse infinitely.) {6}, {T}: Create a white-bordered blue Elemental creature token. It has noted power and toughness and up to two noted abilities. Erase whatever text you use this way.