Free Agent - NA
This guide is all about getting in the enemy's face, taking all of the attention, and being the most pain in the butt solo for the enemy team. The build utilizes attack speed and the hastened passive to allow you to stick to people and take their attention away from the rest of your team, while being able to produce enough damage to pick up some kills as well as out pressure the enemy solo.
I find the biggest problem people have with Bellona is that they kit dump with her, which is not how your supposed to play her. Each of her abilities (minus the ultimate) is essentially a stance switch. Your Shield Bash stance is good for regular boxing, Bludgeon is good for cleaving and high damage, and scourge is great for sustain. I see too many people ult in, bludgeon, shield bash, scourge, then auto.
Early Game:
Buy your items and walk to lane. Try to get a vision shard up by the enemy mana just so you and your team have vision up there for the jungler rotation.
Then its wave time use the bludgeon in between the two sets of minions and clear the archers you wont clear them with just the ability at first so use the cleave autos and clear the archers, then the melee minions. If the enemy solo is in range try to tag them a few times with the cleave autos for extra poke. However most likely your jungler will be on your blue by that time make sure you are there for the xp and gold. Go back to lane and 2 the minions if you didn't hit Level 2 by now your first or second minion here will give you it get scourge. The lifesteal is good, at this stage of the game the disarm is better.
Continue to Bludgeon the waves and finish the clear with your cleave autos. A lot of people like to dump their kit on the wave (and on Gods like mentioned before) Your bludgeon and the cleave autos are enough. Once your wave is done, or if the enemy is autoing a lot, use your scourge to break up his auto attacks. If your wave is done focus those autos on them. The time when they are disarmed is good because if you have ally minions the enemy is taking their damage as well as your damage from autos, all while they cant attack you briefly. If your full health or close too it and the enemy doesn't have a dash you could shield bash them here because that stance is good for boxing and Scourge has done its work.
If you have good awareness of where the jungler is you can push the enemy solo up force them to tower sit. By the time you have cleared the wave and have been hitting them with your scourge your bludgeon should be back up by the time the next wave is at the tower line. At that point you could slam the bludgeon on the enemy if they are low enough and it should kill, otherwise just continue on wave. With the pressure you should be able to snag totem easily enough in between waves.
Teleport Glyph:
It pretty much goes like that for most of the early game if you play it right. Try to put off backing for as long as possible and don't just use teleport if you have it. If the enemy solo just used it they don't have it so if they have to walk back to lane you can afford to do so as well. I usually save teleport for if my tower is about to take minions or the enemy solo is there. If you miss a few minions its okay because if the solo just backed without Teleport (or died) then they are missing them too. Save teleport for when you really need it like if you get ganked and die.
Enemy Stuns:
If the enemy is smart enough and has a stun they know to stun you in the middle of your bludgeon, this is where the Fly in Your Face aspect comes in handy. If they do have one focus them instead of the wave. Get in their face, block their minion clear autos until they dump their stun. Usually this works, sometimes it doesn't and at that point you just have to do what you can on minions, but most of the time they get scared into stunning and using their ult depending which god they are.
When to use Eagle's Rally:
I usually save the ult for either catching an enemy to clean them up or getting out or for fighting a gank. Most of the time not as an initiate unless in a situation like the enemy is half health standing within his minions. That's a good opportunity to ult and get a lot of minion hits for bonus damage on bludgeon which could kill and if not sticking to them with shield bash should kill.
Enemy Ganks:
I usually don't have trouble with ganks, for me they are just more bludgeon procs. Depending on how fed/good the jungler/solo are you could stay and fight. You'll get a good idea pretty early on if you can fight it based on how much damage they are doing. Thats when you decide to aggressively ult or defensively. If your looking good health wise ult them, bludgeon, from here if they are grouped tight keep using bludgeon, if not go for Shield bash. If you start loosing health Scourge and get some health back. Junglers are usually squishy so if you hit the ult and the Bludgeon they should be dead in a few autos. If they are running away feel free to Scourge them for the extra range and turn on the soloer.
Mid Game:
If you've built up a good amount of pressure then you should start focusing on taking their blue. If you have been wining every trade they know they can't fight you so take the blue freely, just make sure you know where the enemy jungler is, unless you feel you can fight them. If you've forced the soloer to back without teleport go run over to mid and gank the midlaner for probably and easy kill if not some relics. See if the midlaner will join you for an early Pyro or even a gank into duo. Moments like these are why i like to have teleport up because i can free roam the map and get back to save my tower if need be.
Late Game:
Teamfight phase is where it gets fun. If you've been doing well you have become the most annoying player to the enemy. The hastened proc lets you run people down and your attack speed is very scary when your in a squishies face. From here you're the frontliner do your job like a support would with less CC. The key is sticking to a target, for the most part (barring jumps and long dashes) you can run anyone down so do it. In a team fight find the damage and go on them forcing them out. If your squishies are taking a lot of heat get in the face of whoever is doing it. Its very easy to become a target at this point which is good because if they all group on you then you can ult them giving your team a stun they can work with, and also, more bludgeon procs. If you've gotten mantle they your essentially a two time exploding stun bomb, you get the ult and take all the aggro the the mantle proc gives your team another stun to work with. If you start to get low and get worried at this point you have bracer to help assuming they don't have anti-heal. If they do then judge the fight before going in because you might want to save your ult for an escape.
Final Notes:
This build has worked very well for me. It's not super tanky but Bellona has a good amount of built in sustain and tankiness. It's also very easy for people to get spooked against you which works for you and your team.
You can switch it up to your liking but I would highly suggest keeping Berserker Shield, Hastened, and Ninja Tabi. Defensive items can be changed around if your getting outboxed by a physical pick up Breastplate of valor or if a magical Genjis guard is good.
Warrior's Blessing
+75 Health +10 Physical & Magical Protection +25 Health Stolen And Mana Restored Upon Damaging An Enemy God, 10s Cooldown ROLE QUEST: SOLO Dealing damage to an enemy god provides 1 stack. This effect can only occur once every 10s. Getting a Kill or Assist on an Enemy god provides 3 stacks. At 15 Stacks Warrior's Blessing Evolves, gaining +15 Physical and Magical Protection.
Round Shield
Healing Potion
This consumable heals 250 Health over 25 seconds.
Healing Potion
This consumable heals 250 Health over 25 seconds.
Healing Potion
This consumable heals 250 Health over 25 seconds.
Warrior for obvious reasons. Always always work into berserkers shield first. Even if there is a magical solo and jungle, get berserkers first for the sustain, power and attack speed. Great first item. You don't need mana pots the buff will provide enough mana.
Mantle of Discord
PASSIVE - If you take damage below 40% health you unleash a shockwave that stuns all enemies within a range of 20 units for 1s and become immune to Crowd Control for 1s. This effect cannot trigger more than once every 110s.
Berserker's Shield
PASSIVE - While below 60% Health you become Berserk for 5s. While Berserk, you gain 5% Damage Mitigation and 20% Attack Speed. This effect can only occur once every 15 seconds.
Ninja Tabi
Hastened Katana
PASSIVE - Hitting an enemy with a Basic Attack grants Haste for 1s, causing you to be immune from Basic Attack Movement Penalty.
Void Shield
AURA - Enemy gods within 55 units have their Physical Protection reduced by 10%.
Runic Shield
AURA - Enemy gods within 55 units have their Magical Power reduced by 50.
Bracer of Undoing Upgrade
Using this item subtracts 3s from all abilities currently on Cooldown and restores 40% Health and Mana lost within the last 5s. Cooldown - 120s.
This can be adjusted in certain scenario for instance i went up against a Hades solo. I was a bit worried about his damage so I started working into Runic before boots, which worked like a charm he was 0-3 by the time he rage quit at around 10 minutes.
Hydra's Lament
PASSIVE - For 8s after using an ability, your next Basic Attack will deal an additional 25% damage. Abilities that function like basic attacks do not benefit from this. PASSIVE - This item grants 2.5 MP5 per 10% of your missing Mana.
The Executioner
PASSIVE - Basic Attacks against an enemy reduce your target's Physical Protection by 7% for 3 seconds (max. 4 Stacks).
OLD Stone Cutting Sword
PASSIVE - Melee Basic Attacks decreases enemy Physical protections by 7, and increase your physical protection by 5 for 3s (max. 2 Stacks).
These items can depend on comp of the enemy team, if their magical isn't doing too much to you or even if the physical isn't you could replace Void Shield or Runic with these items. Or in late game the boots for elixir swap you could grab one of these.
Level up in this order, (Obviously whatever you CAN get),
Ult
Bludgeon
Scourge and Shield bash can be somewhat interchangeable.
If you feel you need more sustain level scourge otherwise go for balance between that and Shield Bash.