Formidable Defense (Spell) Faction: Ironfist Stronghold Nora: 50 AoE 1 (5 spaces). Affected allied units gain Spell Resistance and Shielded for 4 turns. This spell also grants 1 Defense (up to 5) and refunds 5 nora (up to 25 nora) for each unit affected.
The aim of this spell is to give the largest benefit and refund to those who can target a 5 units in a "formation" of 5. The spell is designed to benefit those who can cluster their units for it. The more units, the better the benefit. Basically the spell aims to be efficient for group combat, not buffing a solo unit.