This Magic Arcana implicitly suggests, and this post by cybishop explicitly suggests, Akroma, Angel of Wrath minus Sword of Vengeance.

Weird. This, of course, creates a whole new host of "Akroma weilding a different weapon" creatures.

Akroma, full of Scimitars
­
Legendary Creature - Angel
Flying, protection from red, protection from black
­: ~ gets -1/-5 until end of turn, put a 1/5 Spirit artifact creature with flying on the battlefield until end of turn.
5/11

Akroma of the Kor
Legendary Creature - Angel
­
Flying, double strike, protection from red, protection from black
When ~ attacks, you may look at the top card of your library. If that card is a land, you may put it onto the battlefield, under your control, tapped. Then you may have target opponent's creature block ~ this turn if able.
­: Target creature an opponent controls gains flying until end of turn.
4/6

Akroma of Body and Mind
­
Flying, protection from red, black, green and blue
Whenever ~ deals combat damage to a player, that player discards a card and you untap all lands you control.
6/8

Akroma of the Paruns
­
Flying, protection from red and from black
As long as ~ is tapped, tapped creatures you control get +2/+0.
As long as ~ is untapped, untapped creatures you control get +0/+2.
­: You may tap or untap ~

That last one seems almost printable

Akroma witha Fork
­, 4/6
Flying, protection from red and black
Whenever ~ deals combat damage, put two charge counters on ~.
Remove a charge counter from ~: Choose one — ~ gets +2/+2 until end of turn; or target creature gets -1/-1 until end of turn; or you gain 2 life.

Probably too expensive to be much good!

Akroma witha Plug
­, 5/5
Flying, protection from red and black
When ~ dies, draw two cards.

Amusingly balanced, really. Comparable to Keiga, the Tide Star and friends. Nowhere near as broken as Skullclamp.