Seven Deadly Champions - Gluttony

I've always been fascinated by the idea of the seven deadly sins (and to a lesser extent the seven godly virtues). I've been reading through Green Ronin's The Unholy Warrior's Handbook and have been inspired to create a group of sinful champions for 5E. I'm going to design them to be challenges for lower tier parties (between challenge 4 and 8). Each champion will have a simpering toady, an imp-like servant that compliments its abilities and must obey the commands of its champion. Though they must obey the commands of their masters and can never harm them directly, all simpering toadies loathe their positions and seek to bring about their master's destruction.

Since I'm a fat guy, I thought I'd start with gluttony. He's absolutely brutal and his challenge level may be a bit low, like everyone else, I'm still new to this stuff.

No one knows where Gorak came from and the warrior isn't the talkative type. The massive warrior travels the wilderness slaying and feasting. Occasionally evil warlords will seek him out. Those that due should proceed with caution, for when his hunger strikes he sees little difference between ally or foe.

Gorak the Insatiable 

Gorak and Maw

Medium Humanoid (Human), Chaotic Evil
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Armor Class 19 (plate mail and shield)
Hit Points 84 (8d10+24)
Speed 20
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  STR       DEX      CON      INT      WIS   CHA
18 (+4)   8 (-1)   16(+3)   10 (+0)   9 (-1)     8 (-1) 
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Saving Throws +7 Str, +6 Con
Skills Perception +2
Damage Immunities poison
Condition Immunities poisoned
Senses passive Perception 12
Languages Common, Abyssal
Challenge 5 (1000 XP)

Action Surge. Once per combat, Gorak can take an extra action on top of his regular actions in a turn.

Keen Smell.  Gorak has advantage on Wisdom (Perception) checks that involve the sense of smell.

Actions_______________________________________

Gluttonous Vigor. One per encounter, on his turn, Gorak can regain 1d10+8 HP. This ability recharges everytime Gorak scores a critical hit. 

Ravenous (Great Axe +1). Melee Weapon Attack: +8 to hit, reach 5 ft., one target.  Hit: 9 (1d12+5) piercing damage. 

Wave of Hunger. Once per encounter Gorak can release a wave of vile energy that causes all within 30' to be overcome with an insatiable hunger. All creatures, except oozes, undead, and constructs, must make a Constitution save (DC 14) or give into the hunger for 1d6 rounds. During this time they can do nothing but feed. If no food is near they will seek to consume decaying flesh, filth, excrement, or anything even remotely edible (including slime). However, they will not attempt to eat inorganic matter such as rocks, metal, glass, etc. Gorak's Simpering Toady is immune to this effect.

Maw (Simpering Toady)
Small Outsider, Chaotic Evil
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Armor Class 13 
Hit Points 6 (1d8+1)
Speed 30
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  STR       DEX      CON      INT      WIS     CHA
10 (+0)   10 (+0)   13 (+1)   10 (+0)   10 (+0)  8 (-1) 
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Damage Immunities poison
Condition Immunities poisoned
Senses passive Perception 10
Languages Common, Abyssal
Challenge 1 (200 XP)

Hunger Pains Aura. All creatures, except oozes, undead, and constructs within 30' of Maw suffer disadvantage on all rolls, due to distracting hunger pains. Maw may choose to deactivate this aura on his turn.

Unholy Life. As long as Gorak lives, Maw returns to life 24 hours after being slain.

Actions_______________________________________
Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target.  Hit: 2 (1D4) piercing damage.