Bodyguard Training

The physical-defense stat that reduces incoming AD damage. Tank items, the Defender trait, and champions or items that grant flat Armor all feed into this mechanic, alongside the handful of effects that scale a bonus off a unit's Armor value. Sunder is its inverse — a debuff that reduces enemy Armor.

The magic-defense stat that reduces incoming AP damage. Many sustain items, the Defender frontline trait, and "Gain X Armor and Magic Resist" effects grant or scale off it; Shred is its inverse.

The player-side progression resource. Spending gold on XP buys it; each level raises the team-size cap and shifts shop odds toward higher-cost champions. Augments grant XP directly or trigger off "level up" to accelerate the curve.