Ben Tenison

Each non-human creature in your hand has Mutate. The Mutate cost is equal
to its casting cost.
You may mutate onto Ben Tenison as though
it was non-human.
{p/b}{p/g}{p/r}{p/u}{p/w}{t}: Treat this creature as if
it had mutated.
When this creature mutates, draw a card for each time this creature
has mutated this turn.