Edit: I've made amendments since originally coming up with this build, check below from #6 onwards for an updated version
Some of the starting stats might be a little off, at work on break atm so can't check with the live character. Will fill in specifics of enhancements later.
Mainly for a laugh because I wanted to play a really big & angry bearHe has up to level 7 spells so can cast a decent number of buffs & heals for himself & the party as well as having the automatic passive HP regeneration too plus the +2 crit multiplier while raging, some nice AoE attacks & good durability.
Human or PDK
13 druid, 5 barb, 2 fighter
Starting stats: 16/8/14/14/16/8, levelups all in STR
Tomes: Mine had +7's across the board since it was a TR, but none are essential for feat requirements etc.
Feats:
Power attack
Cleave
Quick Draw
Natural fighting x3
Quicken
Empower Healing
Improved Critical: Slashing
1 extra... could be another IC, depends on preferences.
Epic feats I haven't gotten to working out yet
Enhancements:
Frenzied berserker: 1st 2 cores & up to tier 5 with focussed wrath, faster metabolism & tantrum
Nature's protector: 1st 4 cores & the rage line, beast awakened, stance stuff for defences but not threat boosts
Occult Slayer: extended rage
Vanguard: to get missile shield (ignoring a ranged attack of whatever power every 2 sec is just really nice)
Racial: 1st tier healing amp
A variation could be to go with 15 druid & 5 barbarian so you have access to level 8 spells & ditch 2 of the feats, maybe cleave since momentum swing doesn't work in animal form & the extra IC then throw some more investment into wisdom for a relatively effective earthquake spell & access to Heal as well as an extra level 7 slot allowing you to take relentless onslaught, regenerate & mass greater vigor. This would also free up some APs from vanguard as above to put somewhere else like Ear Smash.