Keen Smell. The giant has advantage on Wisdom (Perception) checks that rely on smell.
Whirlwind Aura. While using Chariot creatures caught within 15 ft must make a save DC of 19 of be blown away 10 ft
Flyby: You don't provoke opportunity attacks when flying out of an enemy's reach.
Punish Failure: When a creature fails their save against one of your damaging abilities by 5 or more, they are afflicted with a specific condition (Prone).
Multiattack. The giant makes two morningstar attacks.
Morningstar. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 21 (3d8 + 8) piercing damage.
Whipping Winds. while Urkurt is spinning his morningstar he creates a tornado, the creature must make a DEX saving throw of 19, if Failed creature will be whipped in a certain direction up to 20 ft and take fall damage
As a bonus action can trigger Chariot