While Venelana was having a relatively easy time with the Sunforge Great Holy, the same couldn't be said about Grayfia's fight with the Sunrise Great Holy.
While Grayfia could use the Law of Annihilation, it was dangerous Law to use it in the proximity of other living beings, so she couldn't use any of her most powerful attacks incorporating the Law of Annihilation.
Thus she was forced to mainly fight with the usage of Law of Ice, Starlight-Tier Ice Spells, and here and there, incorporating Law of Annihilation in small bits in her attacks.
Around their fight, the entire area has been long ago turned into the wonderous contract of Ice Region and Scorching Hot Desert, as two polar opposites clashed against each other. However, it was apparent that Grayfia was pushing, bit by bit, Sunrise Great Holy back.
Great Sunrise Holy was a close-quarter combatant who focused on the arts of the sword, so all of his attacks were extremely shart and deadly. Though Grayfia, with her Law of Ice, was effortlessly creating Ice Constructs that were blocking all of his attacks and at the same time were attacking the Great Sunrise Holy, forcing him to be on the defensive.
Grayfia's Ice Contracts were pretty powerful on their own, as they were the crystallization of her master over the Law of Ice, and several Starlight-Tier Ice Spells, and most importantly, they were the product of the Ice Creator Magic Rule, as Grayfia Lucifer was one of the few people across entire Chthonian Empire of the Baator, who grasped and mastered the usage of the Magic Rule.
Ice Creator Magic Rule centered around free creation, manipulation, and control of Ice in various shapes, magnitudes, and usages.
All of her Magic Constructs had combat prowess of Tier 9 Individuals, with her Ice Titans being Tier 10 and having the same combat prowess as average Great Step Holy Spirit Warlocks.
Unfortunately, she could currently conjure only 2 Ice Titans, and that only with the help of Crown of Eternal Winter, which was an Empyrean-Grade Artifact that she got as a wedding anniversary gift from her beloved husband on their 2000th anniversary.
The Crown of Eternal Winter boosted anything related to the ice several times and was a very powerful Artifact. Additionally, it lowered the usage of energy to cast ice related Spells to 1/5 of their original required value. It also had an inbuilt energy conversion function that converted at least five types of energy to Demonic Energy.
Sunrise Great Holy dodged attacks of two Titan Ice Constructs, who, despite their huge size, were rather agile and fast, but as soon as he dodged the two ferocious Titan Ice Construct, he found himself being attacked by thousands of Ice Spikes as his opponent was conjuring them by hundreds effortless, under the blueish shining light shined on her head, as the Crown of Eternal Winter was activated to its limits.
"Dammed creature!"
Screamed Sunrise Great Holy in pure hatred as he felt his being slowly being frozen to a huge chunk of ice; not even his soul was spared, as his death was imminent and was only a matter of time.
Grayfia remained stoic as ever; she never reacted to taunts or anything her enemies said, as she had her icy facade. Her attunement to ice helped a lot in that, as she was exceptionally talented in the Mind Arts due to her affinity to ice.
Hela, on the hand, was easily enraged by the taunts of her enemies sometimes, but that usually meant that her opponent would die very slowly and painfully, as she gave special care to those who angered her.
***
While Grayfia froze her opponent to death, who became a huge chunk of ice, and Venelana crippled hers, Hela unleashed her Astral Army of Necrotic Undead that shone with menacing green light as they were slaughtering every living human being on the Abemi Plane.
Hela's Necrotic Astral Army was composed of several billions of Necrotic Undead of various Tiers, with the weakest being Tier 4 and the strongest reaching Tier 10. All of her Undead were special in that they contained her Divinity, meaning their weakness to anything related to Divinity, Holy, and Light was removed and didn't cause them extra damage or wasn't outright insta-kill them.
Hela's Godhood she condenses was called Black Empress of Death, which gave her basically unparalleled abilities in Soul Control, Curses, Necromancy, and many other fields associated with that.
Her Astral Army Undead evolved to the Necrotic Undead, and she gained one peculiar ability, to borrow the collective power of her army. Theoretically speaking, she could attain the power of even Tier 12 if she had her army large enough and strong enough right now. Also, she could effortlessly evolve her Undead to higher-tier Undead Lifeforms and increase their power.
Hela was strong, be it individually or as one woman army, as she could unleash an army of billions in a split of second, and her Astral Necrotic Undead were strong, as currently, she had 5 Tier 10 Undead and more than 40 Tier 9 Undead.
Previously, due to lack of strength, she wasn't able to evolve this strong Undead and give them full sentience and everything; thus, their combat prowess was greatly diminished as they acted only on instincts or on orders.
Now she was retrofitting every of her stronger Undead, evolving it to a higher form of Undead Life and giving them full sentience and consciousness, which greatly enhanced their strength.
Of course, this act required an enormous amount of resources, especially blood and souls, and other precious things, mainly some rare ores and an especially astronomical amount of various energy-type crystals, that would even force the Chthonian Empire of the Baator to go broke.
She also didn't take a lot from the Inheritance Vaults, even though she could, because she wanted to leave resources for others, and mainly because Hela viewed this as a challenge for herself.
"If I slaughter the entire plane, coupled with those others Holy Spirit Warlocks, I should have enough materials to finish evolution for all my Tier 10 Undead."
Muttered Hela wickedly as she decapitated Holy Spirit Warlock of the Wind God Palace that was crawling with a huge wound on her chest under Hela's legs.