Assuming you're speaking of myself and asking the question I think you're asking...

Matieu and Night have training from Death Scythes. Which I found from their CSs.

...Unless you're asking what 1337 means, in which case it's 'elite' but spelled with numbers... Or, rather, 1337-speak. Same difference.

Edit: [Redacted]
Edit2: Actually, think I covered all my bases already.