Malfurion, the First Druid

When Malfurion enters the Battlefield, chose a creature type.
{1}{w}{u}{g}: Malfurion becomes a copy of target creature of the chosen type that you control,
except its name is Malfurion the First Druid, it
is legendary, still has this ability, and it has other
creatures you control that share a creature type
with this have +2/+1