BardO looks like a fluffy monster you can hug for safety in times of need.

He is the support with a punch and a hug if you play him right.

Greater Quints x3 movement speed so Bard can collects his relics.
Greater Seals, Greater Marks & Greater Glyphs Make him quite Tanky then to be able to support his ADC and other team Mates.

Bard uses a lot of mana to keep himself and his laning buddy alive so point's on cooldown's and mana is a must. also because he gets speed boosts when healed or collects relics have some points on movement speed.

And have a point for biscuits....man i love biscuits.

If you play Bard just right then you can go the whole match without buying an item but just in case.

As cool as The Journey is. If you are a support you stick next to your Buddy, Get at lvl 3 and max last, only used for escape4s and possible gangs and passing the wall into the enemy base.

Take Caretaker's Shrine first because this can help you lane buddy alive to get more kills on minions and possible kill on a champion.
Take Cosmic Binding secong because obviously this is your only offensive weapon apart from your meeps.
level up Q & W abilities together that way you can keep up teh fight with your lane buddy

Take your ult when you can.

If you don't have flash there's something wrong with you, it's a great utility spell to have.

teleport is great to keep up with your lane buddy when he also has teleport.
or
heal because support character, it can heal you both or even barrier to push to get that possible kill your laning buddy missed or to tuck your tail and run.

Pros:
Bard is a Tanky Support
Very fast to get into the Action
Passive helps fights
Fun to play
Heals fast with his W
Can possibly go a whole match without items

Cons
Needs to collect relics to have any effect in team fights
Not much damage output
other players need to understand his W i.e. leave the health pods charge
Very easy for team mates to blame a support for their screw ups

Though not technically farming, collecting relics around the map will greatly help the fight.
As Bard collects Meeps his passive increases his auto attacks. Here is a list of the buffs his Meep strengthened autos do:
5 Chimes : Meeps apply a 25% slow for 1 second
10 Chimes: Meep attacks deal 25 more damage
15 Chimes: Bard will be able to have 1 more Meep following at once
20 Chimes: Meep attacks deal 25 more damage
25 Chimes: Meep attacks will strike through their target
30 Chimes: Meep attacks deal 30 more damage.
35 Chimes: Meeps will reappear 1 second faster.
40 Chimes: Meep attacks deal 30 more damage
45 Chimes: Meep attacks will slow by 45%
50 Chimes :Meep attacks deal 35 more damage
55 Chimes: Bard will be able to have 1 more meep following at once
60 Chimes: Meep attacks deal 35 more damage.
65 Chimes: Meep attack strike-through cone increases in size
70 Chimes: Meep attacks deal 35 more damage
75 Chimes: Meeps will reappear 1 second faster
80 Chimes: Meep attacks deal 35 more damage
85 Chimes: Meep attacks will slow by 60%
90 Chimes: Meep attacks deal 30 more damage
95 Chimes: Bard will be able to have 1 more Meep following at once
100 Chimes: Meep attacks deal 30 more damage
105 Chimes: Meeps will reappear 1 second faster
110 Chimes: Meep attacks deal 30 more damage
115 Chimes: Meep attacks will slow by 70%
120 Chimes: Meep attacks deal 25 more damage
125 Chimes: Meeps will reappear 1 second faster
130 Chimes: Meep attacks deal 25 more damage
135 Chimes: Meep attacks will slow by 75%
140 Chimes: Meep attacks deal 20 more damage
145 Chimes: Meep attacks will slow by 80%
150 Chimes: Meep attacks deal 20 more damage
(Every 5 chimes after 150 adds 20 damage) Happy Meeping!