Pretty standard, but it'll fall quickly to Phantom Force users (ignores protect) and can be tripped up by its own speed, as well as priority moves.
T1: Protect, cannot be damaged. Speed Boost activates.
Speed+1
T2: Substitute, vulnerable to priority. Gale Wings Talonflame is death. Anything with Prankster will kill your whole Baton Pass chain (and I do love me my Klefki...), so a Lum berry might not be a bad idea. Otherwise, expect Sub to break on this turn, unless they're idjits. If they don't have the aforementioned abilities, you're good to go, but if they do... You've just wasted a slot.