Supergirl 
Superman Family 
Metahuman 
Quantum's Take
Supergirl is widely regarded at this point as one of the best AoE champions in the game, if not the best. However, she also requires some of the highest investment in the game. You NEED Krypto and Superboy paired with her at a minimum to get the full effectiveness from her kit, so she gets the same treatment at LoD champions in that I can't in good faith recommend that non-spenders go for Superman Family unless they are willing to hamper their account by pulling for her and waiting for her re-run to get her up and running. Build her at your own risk if you don't spend, but know that once she's at yellow stars, she is unstoppable.
Damage Type
Physical
Sources where available
The Bleed (Limited)
RavenHrt's Transmute Priorities
Energy Gain Bonus, ATK, Crit DMG
Recommended Legacy Pieces
Multiversal Force Upgrades
Arctic Breath - Enhanced
Reduces cooldown of [Arctic Breath]. 
Solar Recharge - Enhanced
Icnreases Supergirl's Crit Rate. 
Family Ties - Enhanced
Increases Supergirl's ATK. Ultimate
Solar Battery
Supergirl channels her power, dealing Physical DMG equal to [X]% of her ATK to enemies in a circular area. At [Krypton Energy] level 1, she absorbs solar energy, increasing this skill's Crit Rate by [X]%. At [Krypton Energy] level 3, solar energy enhances her might even more, increasing this skill's DMG to [X]% of her ATK.
Global Skill
Power of Rao
Increases all Champions' Physical DEF and [Warrior] Champions' Spiritual DEF.
Skills
Arctic Breath
Supergirl draws in freezing air and exhales an icy blast, dealing Physical DMG equal to [X]% of her ATK to enemies in a fan-shaped area.
Solar Recharge
Increases DEF and MEN by [X]%. At the start of battle, for each [Superman Family] ally present, Supergirl gains an additional stack of [X]% DEF and MEN Up, stacking up to 5 times.
Family Ties
Increases ATK by [X]%. At the start of battle, for each [Superman Family] ally present, Supergirl's Ultimate DMG is increased by 15%, stacking up to 5 times.
