[img=http://static.comicvine.com/uploads/original/2/28855/1574460-shrapnel_2.jpg] 

[b][i]The origin of Shrapnel is unknown. He came into conflict with the Doom Patrol while on a murder spree. Celsius, the leader of the Doom Patrol, encased him in a solid block of ice. He broke free from the block of ice and the shards hit Celsius point blank and hospitalized her. Lodestone was unable to magnetize him and Tempest figured out that Shrapnel is a series of organic cells creating a single consciousness that feeds on the blood of victims.[/i][/b]

We can't magnetize this dude or drain some kind of energy that isn't there. The only known weakness is from the Batman Brave & Bold cartoon where...

[b][i]OMAC was then able to defeat Shrapnel by tiring him down...[/i][/b]

~KL~