Crush( Savage Species, p. 31)
Like a dragon, you can hurl your body onto opponents to deal tremendous damage.
Huge size. Size --------- Crush Base Damage. Huge --------- 2d8. Gargantuan - 4d6. Colossal ----- 4d8,
As a standard action, you can jump or fall onto opponents, using your whole body to crush them. This attack is useful only against creatures at least three size categories smaller than yourself. The base damage for a crush attack depends on your size category, as given on the table above. Add 1 1/2 times your Strength bonus to this base damage to determine the total damage for the attack. A crush attack deals bludgeoning damage and affects as many creatures as can fit under your body (see Large and Small Creatures in Combat in Chapter 8 of the Player 's Handbook). Each creature in the affected area must succeed on a Reflex save (DC 10 + your Str modifier + your size modifier for grapple attacks). On a failure, the opponent is pinned and automatically takes crush damage each round the pin is maintained.