2 items: Adds 129 Damage
3 items: Gain Minor Slayer at all times, increasing your damage done to Dungeon, Trial, and Arena Monsters by 5%.
4 items: Adds 129 Damage
5 items: Dealing Critical Damage grants you a stack of Giant’s Endurance for 5 seconds, up to one every half second. Each stack of Giant’s Endurance adds 41 Damage, up to 10 times.
Completing a fully-charged Heavy Attack removes Giant’s Endurance and grants Giant’s Might for 15 seconds, increasing your Damage by 63 per stack removed.
You cannot have Giant’s Endurance and Might active at the same time.