Dwarven Resilience. The scout has advantage on saving throws against poison.
Keen Hearing and Sight. The scout has advantage on Wisdom (Perception) checks that rely on hearing or sight.
Thargus is a 5th level spellcaster. His spellcasting ability is Intelligence (spell save DC 15, +7 to hit).
Cantrips (at will): fire bolt, light, mage hand, message
1st lvl (4 slots): Chromatic Orb, detect magic
2nd lvl (2 slots): misty step, scorching ray
3rd lvl (2 slots): counterspell, lightning bolt
Multiattack. The scout makes two melee attacks.
Battleaxe +2. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 5) slashing damage.
Longbow. Ranged Weapon Attack: +5 to hit, range 150/600 ft., one target. Hit: 6 (1d8 + 2) piercing damage.
Spider Staff Melee Weapon Attack +6 to hit, reach 5 ft., one target. Hit 6 (1d6 +3) bludgeoning damage plus 3 (1d6) poison damage.
The staff has 10 charges, which are used to fuel the spells within it. With the staff in hand, you can use your action to cast one of the following spells from the staff if the spell is on your class’s spell list: spider climb (1 charge) or web (2 charges, spell save DC 15). No components are required.
The staff regains 1d6 + 4 expended charges each day at dusk. If you expend the staff’s last charge, roll a d20. On a 1, the staff crumbles to dust and is destroyed.