Olstus, God of Shifters

Changeling, When this creature enters the battlefield, choose a creature type. All creatures of the chosen type have changeling.

If you control a creature of the type with flying, Olstus has flying. The same is true with every keyword.

{w}{u}{b}{r}{g}{t}: Put a 4/4 shapeshifter token with changeling into play. It has the abilities of every creature of the chosen type.