: This creature becomes a Kithkin Spirit with base power and toughness 2/2.
: If this creature is a Spirit, it becomes a Kithkin Spirit Warrior with base power and toughness 4/4.
: If this creature is a Warrior, it becomes a Kithkin Spirit Warrior Avatar with base power and toughness 8/8, flying, and first strike.

Overbeing of Myth's power and toughness are each equal to the number of cards in your hand.
At the beginning of your draw step, draw an additional card.