Baron Von Straushauld's spellcasting ability is Intelligence (+11 to hit, spell save DC 19). He knows the following Wizard spells:
Special Equipment. Baron Von Straushauld wears a Belt of Storm Giant Strength, Gauntlets of Ogre Power and he wields a Hammer of Thunderbolts. Action Surge. Twice per day and once per round, Baron Von Straushauld may take an additional action. Eldritch Strike. When Baron Von Straushauld hits a creature with his Hammer of Thunderbolts or Hammer Strike. That creature has disadvantage on the next saving throw it makes against a spell he casts before the end of his next turn. Giants Boon. Baron Von Straushauld counts as a Gargantuan size when determining his carrying capacity, grappling and shoving capabilities, and the weight you can push, drag or lift. Great Weapon Fighting. If Baron Von Straushauld rolls a 1 or 2 on a damage die for his Hammer of Thunderbolts, he may reroll the die (but he must use the new result). Legendary Resistance . Three times per day if Baron Von Straushauld fails a saving throw, it can choose to succeed instead. Powerful blow . Once per turn, when Baron Von Straushauld makes an attack with his Hammer of Thunderbolts and hits, he may make a Strength (Athletics) check contested by the target's Strength (Athletics). If his check is higher than the targets, then the target is pushed back an number of feet equal to the difference in their respective checks (rounded up to the nearest 5ft.) War Magic. When Baron Von Straushauld uses an action to cast a cantrip or spell he may make one attack with his Hammer of Thunderbolts as a bonus action.
Multiattack . Baron Von Straushauld makes four attacks with his Hammer of Thunderbolts or three attacks with his Hammer of Thunderbolts then one attack with his Hammer Strike. Hammer of Thunderbolts . Melee Weapon Attack: +17 to hit, one target. Hit: 17 2d6+10 bludgeoning damage. When he rolls a 20 on an Attack roll made with this weapon against a giant, the giant must succeed on a DC 17 Constitution saving throw or die. Hammer Strike (Recharge 5-6). Ranged Weapon Attack: +17 to hit, range 20/60 ft., one target. Hit 17 2d6+10 bludgeoning damage. If the Attack hits, the Hammer unleashes a Thunderclap audible out to 300 feet. The target and every creature within 30 feet of it must succeed on a DC 17 Constitution saving throw or be Stunned until the end of his next turn.
Shield . Four times per day, when Baron Von Straushauld is hit by an attack or targeted by the magic missile spell an invisible barrier of magical force appears and protects him. Until the start of his next turn, he has a +5 bonus to AC, including against the triggering attack, in addition he takes no damage from magic missile.
Baron Von Straushauld can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. He regains spent legendary actions at the start of his turn. Cantrip. Baron Von Straushauld casts a cantrip. Defensive Stance. Baron Von Straushauld takes a defensive stance, the next attack roll made against him is done so at disadvantage. Eternal Wind (2 actions). Baron Von Straushauld regains 1d10+20 hit points.
On initiative count 20 (losing initiative ties), Baron Von Straushauld can take a lair action to cause of the of the following effects; he can't use the same effect two rounds in a row.
Baron Von Straushaulds lair lies deep within the Halls of Congress, a vast maze in an hidden demiplane. The lair itself are a series of Grand Halls of white marble with gold and platinum vein. The ceilings are over 100 ft. tall and murals of his various achievements painted on the vaulted roof. The light of a new dawn streams through large windows on both sides of the halls, the walls are decorated with keepsakes from his adventures and trophies of his various victories.