Opinion: What 4 egg moves should I teach Fomantis?

[Howmander]

So whenever I have a HA pokemon I breed a 5 IV version with some egg moves to store away for future need and a lot of the time the egg moves are pretty easy to determine, even if they are not moves I plan on using I do end up putting moves on that I can see a value for at some point in the future especially if I decide to change my tactics later on. But I am having a hard time figuring out what 1 move to leave of my Fomantis and I could really use some help deciding!

For those who don't know, it's egg moves are:
Weatherball
Giga Drain
Aromatherapy
Defog
Leaf Storm

And fortunately I happen to have a Nuzleaf with Defog (otherwise Defog would not be an option at all since it's a move tutor egg move I believe) however, ALL the moves have value. Well, nto to me because I am going to be running a purely physical set, however I can see the value if I ever decided to do a special moveset or if someone in the future wanted a special moveset or whatever. So, out of these 5 moves, which one would you leave off the list and why? Best justification/reasoning gets a HA Fomantis with Defog plus whatever the other moves end up being. Thank you so much for helping me make this decision!

 

[MKC]

I'd say Defog, Leaf Storm and Weatherball are a must, Defog is always useful, Leaf Storm goes really well with the Contrary ability, and Weatherball is quite useful on Lurantis since it's a Pokemon that really enjoys being under the sun.

As for the other two I guess it depends on what you need the most, Aromatherapy is always useful and works better if your going for a physical set. but Giga Drain may work too if you decide to combo it with Leaf Storm's Contrary boost.