Cal, Last Hope of Kneppet

Metamorphose {g/u}{g/u}{g/u}{g/u}{g/u}{g/u}{g/u}{g/u}
Hexproof, Indestructible
Cal, Last Hope of Kneppet can't be countered.
Cal, Last Hope of Kneppet can't be exiled by
spells or abilities your opponents control.
Whenever this creature metamorphoses, it fights target creature an opponent controls.