Anyway here’s the reroll rankings from Appmedia and approximate translations

SS rank:

Marth: ‘Falchion’ has a special attack boost on non-colorless types, has a self-regen ability for 3 turns, and can block people(?)

Leo: broad walking and attacking range, aoe attack is strong, the weapon-linked ability might be narrow on range

Ryoma: can counterattack to ranged foes, which is a strong point as other melee ppl can’t do that

Catria: has a skill for minus 1 round before special skill, can reduce an enemy’s defense by 50% for hella damage

Takumi: rare archer type, will be very active as he can snipe

—

S rank:

Roy: defense increases when damaged, has special attack bonus towards green foes

Lucina: has Falchion, see marth. Can recover own HP and buff teammates’ attack

Lyn: follow-up hit after debuffing(activates under 50% health), can move twice per turn

Tiki: Special Skill has high attack, attack-oriented, has a skill for healing entire party

Chrom: Falchion, more defense/tank-oriented

Robin: colorless-type attack available, overall high stats

Aqua: ability to let allies move one more turn, so will be participating actively

No colorless are on S-rank btw