Finally got my first shiny pokemon, but is Sableye viable without speed IV viable?

[slayerming2]

So I finally got my first shiny pokemon! Got it through the masuda method and out hatched a Sableye. Now I really want to use it in battle, but the problem is that it only has IV perfect IV's. It has perfect IV's in HP, defense, Sp.attack, sp. defense and is missing speed... It's a prankster bold nature, I'll be giving it :willow wisp, quash, fake out, and snarl. Should I use it, or is the missing speed too much?