|Lene is an amazing dancer with an awesome personality, a hot body, & the strength + durability of a washing machine (Meaning she can survive in combat but not too long)
Safeguard+ is the best weapon for her because it helps increase her bulk. Even though Brave Sword+ is probably better, Safeguard+ is obviously the more safer (and cheaper) option.
Galeforce makes her more useful after she defeats an enemy, she can go another turn and either kill more units or dance to a near by ally. Lene does have Miracle in her original game and keeps her alive a bit longer. Whichever special makes her more useful is up to you. The only drawback to these specials is that you won’t hear her awesome critical quotes like how much she likes Burger King.
You will definitely need Distant Counter. Since she has Safeguard+, she can take a couple of hits before she can counter her prey. If you can’t get any Distant Counter, it’s better for her to have Death Blow so she can hit like a truck rather than a washing machine.
Wings of Mercy is the most important skill for a dancer & singer to have. If her allies are in danger, she’ll fly to the rescue and get them out or take the enemy out. If you can’t get any Wings of Mercy, just stick with Firestorm Dance to give your team the attack & speed boost.
Since Dancers need to focus on speed, she’ll need Hone Speed. But if you want her to do some last minute healing, give her Breath of Life.
Since Lene is the best dancer to have, she should have Earth Dance to at least boost your team’s defense. If she happens to have a defense or resistance bane, it’s best to give her Distant Defense.
Overall, Lene is 10 times better than Olivia and makes the perfect addition to your Waifu team. However, she is locked at 5-stars so you better be lucky enough to get her in your summoning session.