A wild Shiny pokemon appears and it's going to use recoil damaging moves

[Galaki]

While breeding for a good Deino. I caught this.

Basculin (Blue)
Bashful
Male (♂) Adaptability
HP: 29
Att: 30
Def: 4
SpA: 31
SpD: 14
Speed: 29

It'll make a great water STAB HM mule! Should I give it ice beam or rain dance for 4th move?

Going to EV train it with Speed/SpA.