Fire Emblem Heroes: Alfaðör and Váli Mythic Unit Guide

To choose between Alfaðör and Váli on their Double Mythic Heroes banner in Fire Emblem Heroes, evaluate whether your roster lacks a high-speed offensive shield-breaker or a defensive map-control tank. Target Alfaðör if you need ranged damage reduction piercing to break bulky frontline units, or target Váli if you need enemy debuffs and buff neutralization to secure defensive choke points. If you aim to maximize Aether Raids season scoring, field both units together and place them on the flanks to restrict enemy movement.

Hero	Primary Tactical Role	Key Mechanical Focus	Ideal Roster Gap Solved
Alfaðör	Ranged Offensive Initiator	Penetrates damage reduction; scales with Speed and Attack buffs	Lacks power to break bulky tanks and isolated targets
Váli	Defensive Disruptor & Pivot	Applies enemy debuffs; neutralizes foe stat buffs	Needs a choke-point stall unit to protect fragile allies

Deciding Which Mythic Hero to Summon

Prioritize your Orb investment based on your team's immediate operational weakness:

Summon Alfaðör if your offense stalls out against heavily buffered tanks with high damage reduction. Alfaðör relies on Speed and Attack support buffs to initiate from range, break through defensive cooldowns, and pick off high-priority targets.
Summon Váli if your glass-cannon units are easily picked off by aggressive threats. Váli acts as a defensive pivot that neutralizes enemy buffs, reduces enemy offensive output with debuffs, and safely baits high-threat attackers into choke points.
Summon Both if you require Mythic scoring optimization for active Aether Raids seasons. Running both Heroes simultaneously combines proactive ranged pressure with defensive map containment.

Strategic Positioning and Deployment

To maximize board control when fielding Alfaðör or Váli, follow these tactical steps:

Avoid Center Placement: Do not place either unit in the middle of your frontline grid where fast enemy swarms can easily surround them.
Establish Flank Zones of Control: Position Alfaðör and Váli offset along the outer flanks. This restricts enemy pathing options and forces opponents to engage under unfavorable conditions.
Execute Target Priority: Use Váli to neutralize buffs and absorb incoming hits on one side of the map while Alfaðör initiates from range on the opposite side to destroy softened or isolated threats.