Lambert's form for the hunt will take its cue from the mythical golden boar, Gullinbursti.

As a magical creature, he's far larger than any regular boar, standing about five feet at the shoulder and weighing a good half a ton of muscle and spite. Thanks to the extent of the petrification he's undergone, his whole hindquarters and patches along his shoulders and neck will be made of eerie, living rock animated by the Prince's power. What little of him isn't covered by stone is all thick hide covered with dense, golden bristles that repels ordinary projectiles and weapons. However, as good as a defensive characteristic as they are, they also make him incredibly visible: the bristles glow gold in dim light, making it impossible to conceal himself in shadows.

In sum, his abilities/characteristics are:
► Thick hide, resistant to ordinary weapons, that constantly emits golden light.
► Durable, golden hooves and large tusks to trample and gore any hunter that draws near.
► Incredible speed -- in this form, he's faster than a horse.
► Can run on water and air just as he can on land.
► Spontaneously causes patches of celandine flowers to grow wherever his hooves step.