Prerequisite: Requires 3rd-level Rune Knight feature
Once per Short Rest, the Rune Knight can use a Giant's Might in top of the Superiority Dice from the Martial Adept feat.
If so, when the attacker rolls the manouvre superiority dices, it will use the Extra Damage Dice from Giant's Might feature to do a second dice roll. You can use any of the two rolled values, but never both. The attack uses all benefits granted from Giant's Might before the any action hit the target (Except the extra damage rolls, this will be included by the manouvre).
If Giant's Might requirements are attended, the attack can use a bonus action to keep Giant's Might with 40 seconds duration.