Hope for some help for a returning player (over 1 year out). Below is my main 6 heros, I havent included glyphs or enchant levels but really what I need to know is who should my main heros be and with what aids/equipment?
Hero Level Skill lvl Merc lvl Evolution Equipment
Pan Goli 160 13 31 Cancer Arcane Tome (lvl 3)
Abyss Demon 135 14 30 Leo -
Chrion 135 14 30 Gemini Arcane Tome (lvl 1)
Renee Ven 130 9 25 Gemini Thunder Blade (lvl 2)
Pounder 125 5 1 None Thunder Blade (lvl 1)
Landslide 125 13 28 Cancer Dragon Heart (lvl 2)
Ambrosia 125 13 30 Gemini Thunder Blade (lvl 1)
I'm a fairly inactive player so take what I say with a grain of salt.
I found it extremely helpful to take my PG to Skill lvl 20 and I am now working on taking him to Pisces (he is currently at Scorpio). Get him to Leo ASAP. Also, assuming you're a F2P player, save as many jewels as you can (roughly 16k) for the Limited Time Trading. If it lasts for more than 1 day, wait to trade for jewels until there is a spend gems event such as lords gone wild. It will greatly help the progression of your account. I'd also save all hero shards/mutagen for when you get to enlightenment, as you can get most evo essenses from the previously mentioned Lords Gone Wild event.
As for top 6, aids and equipment, it is really dependent on what mode. For Hero Trials and Coliseum, PG aid is a huge help on everybody, as well as Enchantress if you have her. Berserker Aid is also a great aid. I can't really tell you the best for everything because I can't trust myself for my own account, lol.
For Arena, I'd use PG, Chiron, LS, Ambro, and AD, based on the listed heroes. Won Ton and Enchantress are also great picks if you have them. Not sure about the other modes.
Hope my slightly ambiguous tips helped