Macherie is a light support unit, and only one of a few units with the Cleric as the main job. Her main job's skills mostly focuses around removing and preventing debuffs / status effects. Her stats are a mix of both ATK and MAG, with the option of being able to focus on one of them through the passive or sub job, but neither are amazing. She also has negative attack type resistances to Slash, Pierce, and Missile, which can be an issue since they are somewhat common in general.
Her EX upgrade kind of puts her stats to be somewhat closer to newer and more relevant units, and the new skills makes her noticeably more tanky, being able to gain up to 30 SPR and DEF through her skills alone. However, she doesn't really have any use for those defensive stats since she doesn't have any hate generating skill, and likely won't be played as a frontliner.
Limit Burst
Radiant Twinstrike
Deals 2-Hit (L) to target & significantly raises All Attack Type Res for 1 turn.
Effect Type
Physical
Attack Type
Strike
Element
Light
AP
49
UseLimit
1
Max Effect (at Lv.20)
Dmg: 213%, All Attack Type Res: +45%
Range Height
0
Area Height
0
Limit Burst (Enhanced)
Radiant Twinstrike (Enhanced)
Enhance All Attack Type Res. Deals 2-Hit (L) to target & Guaranteed Hit & significantly raises All Attack Type Res for 3 turn.
Effect Type
Magic
Attack Type
Strike
Element
Light
AP
49
UseLimit
1
Max Effect (at Lv.20)
Dmg: 213%, Hit Chance: 100%, All Attack Type Res: +60%
Range Height
0
Area Height
0
Master Ability
Master Ability 1
Max TP +10% / AGI +10%
Master Ability 2
Light Unit Allies' Max HP +10% / Light Attack +15, own Max TP +10% / MAG +30% / AGI +10% / Hate -3/ Enhances Radiant Twinstrike
No Activation Time. Raises MAG of targets within range for 3 turns & nullifies Poison, Frostbite, Blind, Sleep, Silence, Paralysis, Confusion, Slow, Berserk & raises own Healing Power for 3 turns.
For me, i think it is better to build her focused on magic. Since monk is the only physical class she has and has 2 magic classes which will benefit more. And most of the time, she'll be using magic LR attacks since her monk class is a melee type in which she needs to get closer to the enemy unit