Soul Strike tier list - Characters ranked according to performance

Ally	Element
Charlotte	Earth
Gestella	Physical
Zion	Aqua
Yeo-un Cheon	Physical
Avalanche	Water
Howard	Burn
Jiwoo Seo	Wind/Electric
Grandis	Physical
Rebecca	Poison
Chocolat	Magic
Scarlet	Physical
Edward Elric	Fire
Ignis	Fire
Eve	-
Alphonse Elric	Earth
Artamiel	Physical
Munkyu	Physical
Riza Hawkeye	Wind
Roy Mustand	Fire
Ran	Magic
Yuna	Physical
Felino	Physical
Sophia	Fire
Baine	Physical
Vivet	Fire
Vivian	Earth
Jayna	Water
Mona	Water
Duke	Fire
Violet	Wind
Mina	Wind
Delia	Wind
Inabelle	Water
Wraith	Earth
Versper	Wind

These are the best characters in Soul Strike at the moment, so I've put them in the S-Tier. Now, why are they the best, you ask? Because they can get you through every stage of the game. Unlike the characters in the lower tiers, who are useful either in the earlier or mid stages of the game, those in S-Tier overperform even in the later stages.

Charlotte

Charlotte is one of the best damage dealers in Soul Strike. She has amazing AoE and can also debuff enemies, reducing their Earth resistance. She can also be somewhat of a second healer thanks to her ability King Slime, which summons slimes to heal allies.

Felino

Felino curses enemies, reducing their DEF, and whenever they die, the curse gets transferred to another enemy. He also inflicts bleed that causes enemies to take damage over time.

Ally	Element
Zeros	Earth
Cecilia	Physical
Vanessa	Violet
Jiwoo Seo	Wind
Tiana	-
Anavel	-
Ajax	Earth
Sylvia	Earth
Kekoro	-
Con	Fire
Ellis	Physical
Akari	Fire
Jerry	Physical
Bianca	Water
Zion	Water
Helena	Fire
Nike	Wind
Rebecca	Wind
Gabriel	Wind
Kululu	-
Aries	Water
Syaoran	Fire
Noah	Water
Seohyun	Physical
Betty	Physical
Vesper	Wind

A-Tier characters are definitely strong enough to carry you through most of what Soul Strike has to offer. The main difference compared to S-Tier is that they are more dependent on synergy with the rest of your team. Regardless, they are solid options both as support and as damage dealers.

Akari

Akari's skill, Foxfire, gives him the ability to launch a fireball that gradually grows, inflicting damage to enemies in an area around it. The longer the battle goes on, the stronger Akari becomes. The fireball inflicts damage over time to enemies affected by it.

Nike

Nike is known for her ability to cause sustained damage to enemies. Her skill, Goddess of Triumph, increases Nike's move speed and ATK speed for a while.

Ally	Element
Elena	Fire
Emily	Wind
Ran	Wind
Tanama	-
Lingling	Earth
Echo	Physical
Merina	Water
Bruno	Earth
Giroro	-
Aesfox	Fire
Llloyd
Claude	Water
Bathory	Wind
Javier
Claudia	Wind
Roy	Earth
Dororo	-
Kevin	Physical
Alicia
Chloe	Physical
Fabien	Physical
Grace	Physical
Ethan	Earth
Lavina	Earth

Even though this is our bottom tier, it doesn't mean that the B-Tier allies are THAT bad but, obviously, they do not perform as well as the allies in the tiers above. The thing is, Soul Strike isn't like other games where some characters are completely useless. That said, you should look to replace them with better allies whenever you have the chance to do so.

Roy

Roy is a Rare Ally who excels at controlling the enemy. Every 15 seconds, he casts Sand Tomb on his last position, slowing every enemy in an area around it. If you have him on the team, make sure to switch his position in order to get the most out of Sand Tomb.

Lingling

Even though Lingling isn't the strongest ally, she can still do some damage. Her basic attacks have a chance to cause a heavy blow to the enemy. Still, she is at the bottom of our Soul Strike tier list for a reason - there are much better choices for you.