3.3.5 - PvP ele sham best dagger?

hi,

so what would you say is the best possible pvp dagger for ele sham.

Would it be frozen bone spike, wrath. glad. blade of celerity, or wrath. glad. mage blade? and why?

or would the Royal cepter of tyranus be even better? any ideas?

thanks!

It u want full DMG so go for heroic royal bla
It u want some resil go for pvp wrathful dagger