Delver — guide

In short

Delver is an Epic Dark Elves crossbowwoman, Attack role, Spirit affinity. Her kit is pure debuffing — Heal Reduction, Weaken and Decrease DEF — but with a base ATK of 1 299 she barely deals damage herself. The site author's call is blunt: to the vault (fusion), do not build.

Strengths

• Skill 1 has a 45–60% chance to place 100% Heal Reduction for 2 turns — shuts down boss and Arena healing.
• Skill 2 slaps a 3-turn 25% Weaken on any target already under Heal Reduction, and it cannot be blocked — a real setup for your damage dealers.
• Skill 3 is AoE: it first gives herself a 50% Increase ATK for 2 turns, then hits all enemies and adds 60% Decrease DEF for 2 turns on targets under Weaken.
• Aura: +27% Ally ATK in Faction Crypts — genuinely useful for Faction Wars.
• Every debuff she brings is team-wide, so she multiplies other champions' damage.

Weaknesses

• 1 299 base ATK is very low for an Attack champion — her own hits are forgettable even in good gear.
• Her kit is a chain: no Heal Reduction means no Weaken, no Weaken means no Decrease DEF. Immunity or a cleanse breaks the whole thing.
• Fragile and slow: 16 350 HP, 914 DEF, 98 SPD — she may not survive to her first turn.
• Content ratings are low across the board: Hydra, dungeons, Hard mode and Doom Tower all sit at 2.0 out of 5.

Where to use

Her best scores are Chimera (3.5) and Faction Crypts (3.5), where the aura and debuffs actually pay off. Clan Boss (3.0) and Arena (3.0) are situational at best — she only works as a debuffer next to real nukers. Hydra, dungeons, Hard mode and Doom Tower (2.0 each) are not her content. The in-game blurb recommends her against the Lava Knight and in the Spirit Citadel, but per the site author that is no reason to invest.

Stats and gear

Priority: Accuracy (200–250+, otherwise nothing lands in late content) → Speed (170–200 so the chain completes) → C.RATE 100% and C.DMG 150%+ as a secondary goal → ATK. The build list has no artifact sets, so use the standard picks: Perception plus Accuracy/Speed for a debuffer, Savage or Cruel if you want any damage at all. Relics listed in the build: Malefic Talon and Irethi Coronet.

Masteries and blessings

The build's masteries are damage-oriented: Pierce Defenses and Boss Slayer — fine if you drag her into boss fights. For Arena or Chimera, pick up Accuracy/Speed nodes in the support tree so her debuffs actually stick. No blessing is specified in the build list, so take a defensive or utility one — she will never carry as damage.

Tomes

If you do build her: book Skill 2 to level 5 first, since that is −1 cooldown, meaning more Weaken and better uptime for Skill 3. Then Skill 1 to level 5 for +10% Heal Reduction chance (60% total). Tomes in Skill 3 only add damage — leave those for last.

Verdict

The debuff package looks decent on paper, but the low base ATK and low speed ruin it. Keep her as fusion material and spend neither tomes nor gear.