Free Agent - NA
You can win Arena game by last hitting every minions.(Let the enemy minions kill your minions, so they don't get ticket.)
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Thoth: Long range poke, hard to catch.
Persephone: You can't fight her in her garden. And half of the map is her garden. And she has the best team fight ult.
Scylla: Good follow up, high burst damage, relatively safe.
s+
Aphrodite: Good support abilities. However, her teammate need to do more damage. Good utility mage.
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Hel: Hard to play, easy to win with correct build.
Agni: Long range area stun! He can help tanks to engage fights and has good follow up cc.
Ah Puch: Reliable follow up damage, good team fight ult. He can separate a team fight using his ult. 100% anti healing.
Nox: Good CC combo, but lack of reliable damage output. (Can't be the main damage dealer)
Discordia: Good follow up cc and damage, relatively safe.
Morrigan: Multiple play styles, can do petty well if she has support from teammates.
Baron Samedi: Good engage, reliable CC, healing and slow cleanse. (Utility type of god, lack of damage)
Hera: Good follow up cc and damage. Hard to kill and easy to turn fights with her one shot combo.
Isis: She has good clear, slow, silence, stun, area damage mitigation, and healing. You can't ask for more.
Vulcan: High damage and relatively high speed. His turret is OP.
Kukulkan: Good follow up damage. Easy to get caught.
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a+
Zeus: High area damage. But he needs teammates to clear the minions and peel for him.
Poseidon: Nice follow up cc, can ult people on cooldown.
Raijin: Reliable damage output, good team fight ult.
Merlin: Long range poke, reliable damage. Lack of CC.
Zhong Kui: reliable damage output, good team fight potential. Only countered by Nezha and Olorun.
a
He bo: High burst damage, increase movement speed and has slow cleanse.
Hades: Good team fight ult, and high burst damage. However, lack of long range damage.
Nu Wa: Good guarantee damage, can secure kills, high burst damage. Lack of escaping abilities.
Chang'e: Good team fight ult, good sustain. Lack of damage. (Baron is just a better version of her)
Sol: Good follow up damage, hard to kill. Require cc step up from teammates.
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Anubis: Good damage and cc. Lack of mobility.
Chronos: Good follow up cc, excellent late game. Taking too long to get online.
Ra: Good healing, and snipe. Requiring teammates to play aggressive.
Ao Kuang: Good ult. After Hirez remove the movement speed from the rings he is relatively weak.
Freya: Good damage, cc, kill secure. But she runs out of mana too fast, and it's hard for her to melee in Arena.
Janus: Good mobility, high burst damage. Arena can't show his true power.
c
Olorun: Late game hyper carry with crazy ult. Taking too long to get online.