The best example of what you are looking for doesn't really exist in RoM in the full capacity that you played it in the other game.
Nothing does everything well in RoM. You're looking for "godmode" character.
Here are your options:
M/P: Heavy magic AoE damage, healing skills, No heavy armor. DPS/Solo combo.
W/M: Heavy Magic Single Target damage, No healing skills, Moderate Armor. DPS combo.
P/W: Low Physical DPS with Low AoE damage, Decent Healing, Moderate Armor. Solo/Healer combo.
W/P: Medium Physical DPS with AoE, Low healing skills, Moderate Armor. Support/Solo combo.
K/P: Hybrid AoE damage, Medium healing skills, Heavy Armor. Tank combo.
K/M: Magic AoE damage, No healing skills, Heavy Armor. Tank combo.
S/M: High Magic AoE damage, No Healing skills, Medium Armor. DPS/Support Combo.
Amongst other combos, these are ones that sort of caught my eye as being sustainable in solo play. There are a ton more combos, but generally, these are the overlooked ones because they are either OP or haven't really been played seriously in a long while. WD/D and K/P are essentially the same as far as how they work in combat. WD/D is a bit more heavy on Single Target DPS with some additional support skills, while K/P is heavier on the AoE damage and healing abilities.