Path of the Giantbreaker

Giantbreakers embody the fury of the small, specializing in taking on threats far bigger than themselves. When kaiju rise from the sea, when behemoths wake from their slumber, Giantbreakers rise to the challenge.

The Fight in the Dog

Bigger foes have bigger vital spots! At 3rd level, whenever you deal damage to a creature, it takes an additional d4 of damage for every size larger it is than you. At 10th level, this increases to a d6.

Humble Arsenal

At 3rd level, your skill makes the tools of shepherds, farmers, and peasants capable weapons against your foes. Whenever you attack with a simple weapon, its damage dice is one size larger (d4 to d6, d6 to d8).  At 10th level, this becomes two sizes larger (d4 to d8, d6 to d10).

The Bigger They Are...

At 6th level, your size disparity becomes an advantage. You are able target weakness in your sizeable foes' balance. You count as one size larger when determining whether you can shove or grapple a creature. In addition, whenever you grapple a creature, you gain a bonus to armor class equal to the number of sizes larger it is than you.

Undersized Fury

At 10th level, you've mastered your ability to use the simple and small to slay the gargantuan. The additional damage dice from your The Fight in the Dog class feature becomes a d6. In addition, the damage die increase to simple weapons from your Humble Arsenal class feature is now two sizes larger.

...The Harder They Fall

At 14th level, you are a master of leverage and disrupting balance, able to bring even the most colossal beings to the ground. You count as two sizes larger when determining what creatures you can grapple or shove. In addition, when you knock a creature prone, it takes d6s of bludgeoning damage equal to the number of sizes larger it is than you.