Actually, it drops from Sylvan skills. There isn't a specific slot for it. Logistics, Defense, Attack, Luck, and an additional skill, naturally, Light Magic (Resurrection). But overall, it's a pretty good skill for experimentation.
How does it drop? That's not true; it's worth investing in for all factions (as is Logistics). First, Druids can upgrade Lightning, and it's essential to upgrade Cold to stun opponents, and Fire is very effective at reducing the defense of enemy soldiers. So why would you give up such a good offensive magic skill? In my opinion, there's also enough room for the other skills – Elven skill, Logistics, Luck, Chaos Magic, Defense, (free
