Wizard Fun

Whenever you cast a spell you may change its card type to: creature, instant, sorcery, enchantment, land, or artifact.
If a creature card would become a different card type it loses its power and toughness, if it would become a instant or sorcery only enter the battlefield effects will activate.
If a non-creature card would become a creature card its power and toughness are equal to its converted mana cost.
This card can be your commander.