Ghostborn — guide

In short

Ghostborn is a Legendary Dark Elves Support built around AoE debuffs and an Accuracy aura. He shines in Classic Arena and on dungeon waves, and is close to useless on Clan Boss. Build him — priority is Speed, then Accuracy.

Strengths

• His A3 lands a 60% Decrease DEF for 2 turns on all enemies that cannot be resisted and gives the whole team 50% Increase ATK for 2 turns — one button does both the debuff and the buff.
• +65 Accuracy aura for allies in Faction Crypts makes him a near auto-include in Dark Elves FW.
• Two AoE actives at 75% proc chance mean plenty of debuff attempts — perfect for a Stun set.
• The AoE nuke scales off Speed, so the SPD you build on him as a support also feeds his damage.
• 100% Heal Reduction across the board shuts down healing waves in dungeons.

Weaknesses

• Damage is ATK-based but his job is support: don't chase C.RATE or C.DMG.
• Clan Boss is his worst spot — Heal Reduction does nothing there and his debuffs last only 1–2 turns.
• The A3 ignores Accuracy entirely, so ACC is only needed for A1 and the A2.
• 101 base Speed is low; without Speed gear he moves late in the rotation.

Where to use

• Classic Arena (4.5/5) — his home: unresistable Decrease DEF plus team Increase ATK to set up your nukers.
• Dungeons (4.0/5) and Faction Wars (4.0/5) — reliable debuffer and the Accuracy aura.
• Hydra, Chimera, Hard mode and Doom Tower (3.0/5 each) — a second debuffer when you have a free slot.
• Clan Boss (2.0/5) — his weak point, barely worth bringing. The build list also flags Archon Amius and Clan Boss, where he is taken purely for the unresistable Decrease DEF, but that's a niche, not his role.

Stats and gear

Priority: Speed → Accuracy → survivability. Aim for 220–260 Speed (more in Arena is always better, since it also boosts his AoE damage), 250–300 Accuracy for dungeons and 350+ for Arena against high RES, and HP%/DEF% up to roughly 35–40k HP or ~3k DEF. Ignore C.RATE and C.DMG — a support gets nothing from them.

From the recommended sets: Speed (the backbone — he doesn't function without it), Offense (for A2/A3 damage) and Stun; Speed + Stun is a strong Arena combo because two AoE hits proc stuns often. Relics: Malefic Talon, Orb of Transfixion, Perched Shadow.

Masteries and blessings

Offense and Support trees. Key picks from the build: Pierce Defenses, Invigorated, Targetfinder, Expeditious Exploitation, Gathering Momentum. Blessings: Brimstone for extra damage off debuffs, or Intimidating Presence if you want the Decrease ATK pressure.

Tomes

Book the A3 first: books take the debuff chance to 100% and cut 1 turn of cooldown — it's his whole identity. Then the A2 (chance + cooldown), A1 last.

Verdict

The site's verdict is "build him", and it holds up: an unresistable Decrease DEF plus a team-wide Increase ATK in one skill makes him a top pick for Arena and Faction Wars.