this is a volibear build for 3vs3 playing all tanks. preferably against 3 ad's.
its like a counter against madreds bloodrazor.

P.S. it isnt a fancy build, because its my first :D

i choose ghost because its perfect for chasing and escaping, thanks to rolling thunder.
and i choose exhaust because its good for catching the enemy and you can give that extra damage, or execute that frenzy bite.

Ninja Tabi:
You will need that extra armor at start, later u can change it.

Wit's End:
Because enemy champions will most likely build madreds bloodrazors(if enemy is ad) it gives enough magic resist to soak that damage up.
wits end's are good thanks to volibears ulti as well, with more attack speed u get more magic damage.
and if u get ionic spark it will add damage to that as well, and wit's end has its own magic damage.

Overlords Bloodmail:
Every Volibear needs a little HP :), and its good because it also works good with your passive.

Frozen Heart:
Armor, picked heart because thornmail will be removed from 3v3 armor against ad's.

Ionic Spark:
Boost up your magic damage and a little HP

Rylay's Crystal Scepter:
Your ultimates lightning will now also slow the enemy. The fact that your slow will bounce from one enemy to another is crazy, also if you cant catch an enemy you can hit minions that are behind him.

Even if you dont think this is a reasonable build, then just try it, its fun as hell.
The attack speed from the wit's ends demolish enemys when you are using Thunder Claws