What's your level now? Aco is indeed hard to level, I was leveling in GH Prison. Heal bombing the zombies until i became priest.

As full support, you need to party with others to level up. Later on as priest, you'll probably get invites naturally. Just hang around those common party areas. There are some areas that heal slave just doesn't cut it.
Sandman, Toy Factory, Ayothaya

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gl_prison1.
Yes, this place is high risk high reward map.
But good thing is that people are slowly crowding this map, which means you can ks heal bomb the zombies there and leech exp from other kills. Just make sure you hav fast hands to tele away when hunter fly chasing you.

But if prefer safe, fluffy map, payon dungeon is your best bet.
Medium challenge map would be going to orc dungeon.
If you can afford, equip snake hat. I might be wrong but your passive double attack might stack with the snake hat double attack.

I lvl at Geographer area, bring a lot of wing of fly.
Currently level 43, 1 day spend 1-2 hours. Each mob if you solely hit it till die gain like 10% i think.

Once your mage level 20 ish with level 5 fire bolt, can go kill muka. There easily gain till 30 ish then start go KS/level at geographer.
Dont bother about potion because from juno walk down 1 map then right map reached. 1 hit by mob KO anyway

Feel a bit lazy to play now due to botters... bored.. expect the game will die soon.

openkore cant use xkore inject.
But somehow i seen pixelbot ... hahaha

Bersepah ppl selling that bot. So lazy play d...