Deliana is a new legendary High Elves HP champion you get as a 7-day bonus. Currently is no recommended artifact set in Ayumilove so I want to try it out on my own and see how close I get.

Skills

• Heart Stealer - attacks all enemies, 50% of placing Leech for 2 turns. Damage based on HP.
• Wither Scorn (4 turns) - attacks 1, 75% of placing 50% Decrease RES for 2 turns. If target has Block Buffs applies Debuff Spread. Damage based on HP.
• Know Your Place (5 turns) - attacks all, 75% of placing Block Buffs for 2 turns, heals allies for each Block Buffs placed, fills this champions Turn Meter for each Block Buffs placed. Damage based on HP.
• Magnificent (Passive) - +2 ACC per 1000 HP, place 25% Strengthen on allies when this champion's HP drops below 50%

Equipment

Quite the HP-oriented champion, which leads me to

• Weapon: ATK
• Helmet: HP
• Shield: DEF
• Gauntlets: HP%
• Chestplate: HP%
• Boots: HP% or SPD
• Ring: HP
• Amulet: HP
• Banner: ACC

Artifact Sets

Likewise artifact sets that give you HP would be nice.

Immortal (2 items) - HP +15% and heal 3% per turn
Divine Life (2 items) - HP +15% and 15% HP self shield for 3 turns
Perception (2 items) - ACC +40 and Speed +5%

I like Immortal since you heal a bit and the more MAX HP the more you heal. Divine Life's Shield to make up a bit for no DEF and again the Shield is better the more MAX HP you have. Perception combined with the ACC bonus per 1k HP to make sure Know Your Place affects everyone and a bit of extra Speed is nice.