Greater Powerful charge
( Miniatures Handbook, p. 27)[Fighter Bonus Feat, General]
You can charge with extra force.
Prerequisite
Powerful Charge (MH) , Medium or larger, base attack bonus +4,
Benefit
As Powerful Charge, but treat yourself as one size category larger than you are. For Colossal creatures, the extra 6d6 points of damage bonus becomes 8d6.
Special
A fighter may select Greater Powerful Charge as one of his fighter bonus feats.