Runic Skulls are special mobs that appear during the Lich boss fight in the Necropolis level. They provide various effects that make the Lich encounter more challenging.

Runic Skulls are summoned by the Lich during combat and remain stationary on pedestals. The Lich activates these skulls every 5 turns, causing them to have various effects that aid the Lich in combat.

• Red Skull: Heals the Lich for 7% of its maximum HP per skull summoned
• Blue Skull: Summons Skeletons (1 per skull summoned)
• Green Skull: Creates Toxic Gas clouds in a 30-cell area per skull summoned
• Purple Skull: Provides complete protection from damage to the Lich

• The Lich can only activate one skull at a time
• Skulls are positioned on pedestals when the Lich battle begins
• The number of skulls varies with difficulty (2 on Easy, 3 on Normal, 4 on Hard+)
• Skulls are cleared when the Lich is defeated
• Skulls have high defense but don't actively attack
• Immune to various status effects: Paralysis, Stun, Toxic Gas, Terror, Death, Amok, Blindness, Sleep

• Prioritize destroying pedestals with active skulls
• Be aware of area effects when skulls are activated
• Prepare for different skull effects by having appropriate defenses
• Since they are immobile, position carefully to avoid their effects

• Lich - The boss that summons the runic skulls
• Pedestal - The level objects where runic skulls appear
• Necropolis Level - Where the Lich and runic skulls appear
• Toxic Gas - Effect from green runic skulls
• Technical Details - Machine-readable reference page

• Java Implementation: RunicSkull.java
• Lich Implementation: Lich.java - Contains skull summoning and activation logic
• Sprite Configuration: RunicSkull.json