Wouldn't defog be worse on psychic terrain due to removing it, meaning that you have to switch indeedee in again? You don't have to run clef if you don't want to though, that's just a suggestion and you probably know more about the teamstyle.
Also, but just wondering is how have you optimised indeedee? It's not a horrible mon by any means, its no pincurchin, but does hold the teamstyle back a bit.
Is Defog worse on Psychic Terrain? I mean, theoretically yes. But actually not so much in practice. I'm running double terrain because Rillaboom fixes the priority issue. This means that I often have shifting terrain conditions. The only mon I have that is truly reliant on Psychic Terrain besides the setter Indeedee is Polteageist. Something like D-speed can function in and out of it. The main problem with hazards is the Focus Sash on the teapot, T-spikes a little bit, and if hazards get stacked too much. Generally, I would only need one or maybe 2 Defogs in an entire match. This is not so disruptive.
As for Clef, I don't know yet. I'm going to test it. But generally, I want momentum. Momentum doesn't help if you get swept by Moon, though.
Here is the Indeedee set:
Indeedee @ Choice Scarf
Ability: Psychic Surge
Tera Type: Fighting
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Expanding Force
- Tera Blast
- Trick
- Healing Wish
It must be said that Indeedee is not a real pokemon. It's not OU level. At least Choice Scarf makes it much better on several counts. Against stall or slow defensive mons, you can cripple them with a Trick. Expanding Force also hits pretty hard against mons that don't resist it. You can move before some offensive mons. It just help with speed control. Finally, a faster Healing Wish can make a really good transition into an attacker if you time it well.
The biggest danger with Choice Scarf here is Dark types. They switch in on the Expanding Force and you totally lose momentum. This is worse with Roaring Moon since they get a free DD. But it's bad in general. This also necessitates bringing it in to immediately switch it out far more than is ideal. It's a huge momentum sink, hence the need for pivoting.
The biggest tech I have for this is Tera Blast. In general, I feel like Tera Blast is underexplored as an option on Normal mons. Because it is Normal STAB, you don't necesarrily have to rely on Tera or Expanding Force to do damage. It's not a ton of damage, but it's usable in certain situations. If the Dark type switches in, you have a way to hit it. You can also switch coverage while being choice locked, which can be crucial. Generally, Indeedee isn't typically the mon you want to Tera. But sometimes it is necessary. I have beaten a triple Dark team this way.
I debated on going Tera Ghost or Dark in order to hit ghosts, but I decided it was better to get rid of the Dark types. Once they are out of the way, all the ghosts besides Ghold can lose to Psyspam.
