Giant's Axe

The axeblade seems to be hewn from stone.
Any normal man would struggle to lift it.
You gain a +1 bonus to Attack and Damage
Rolls made with this Magic Weapon.
When you hit a giant with it, the giant takes an
extra 2d6 damage of the weapon's type and must
succeed on a DC 15 Strength saving throw or fall
prone. For the purpose of this weapon, "giant"
refers to any creature with the giant type,
including ettins and Trolls.