A while back, I needed Safeguard fodder, but I was looking for a supportive merge project, and I came across Lene. She has good stats at +10, and good access to skills. Her attack is high enough to do some damage, and her defensive stats high enough for a defensive build. Her speed is obviously quite good, and her HP high enough for Infantry Pulse with a refined weapon. Also, she has access to the defensive swords (Safeguard/Barrier Blade), the Chill blade Geishun, R Duel Infantry, Steady/Warding Breath, Wrath, Null skills, Special Spiral, as well as powerful supportive skills such Infantry Breath and Infantry Pulse.
Then I realized when I asked the question a couple of days ago; she’s 5* locked because IS refuses to demote stupid Valor skills.