Your heart burns with the heat of an inferno.
Prerequisites
Giant Bloodline (Fire Giant), Heart of Fire, bloodline level 3rd.
Benefit
The damage you deal with your Heart of Fire feat is doubled to 2d6 points of fire damage + 1 for each Gigantic Feat you possess, and the damage dealt to creatures attacking you is also increased to 1 point of damage for each Gigantic Feat you possess.
In addition, whenever you confirm a critical hit, the space around you is set alight by your inner fire, dealing 2d10 points of fire damage to every creature adjacent to you.