Would this work with lock-on?

Question

If you used it then switch to lets say dugtrio then used fissure would it automatically hit?

Answer 1

The next move the user uses is guaranteed to hit.

In other words no. Because Dugtrio did not use the move.

Comments

you beat me again -.-

Answer 2

No, because it says
"The next move the user uses is guaranteed to hit."
So it would only work for the Pokemon who used it.
Source: http://pokemondb.net/move/lock-on
Hope I helped!