I have a question about speed benchmark for pokémon with average speed, like Duraludon. If I'm using it with tailwind support, do I need to max out speed? I mean, with tailwind, it can outspeed Dragapult without full speed investment. So, what speed should I aim for? Even at max speed, it won't outspeed Excadrill without tailwind. So max speed would kinda be a waste.
The first part of my thinking is that, if my opponent has a lot of faster pokemon (Dragapult, Inteleon, scarf Dracovish, etc.), I bring my Whimsciott for tailwind. I give Duraludon enough EVs in speed to outspeed Dragapult. I obviously max out special attack, and then I can give him some extra bulk with the EVs I didn't have to put in speed.
For slower pokémon like Rhyperior, Torkoal, Dusclops, etc, Duraludon will outspeed them without any speed investment. Let's not talk about trick room, they're slower, so they would move first anyway. Here, the key is to prevent/deal with trick room, which isn't related to my question, so let's not talk about that.
The second part of my thinking is that, if my opponent has a lot of average speed pokemon (Tyranitar, Rotom, Togekiss, etc), it could be possible to use an other pokemon than Whimsicott (for say, more offensive pressure, or different utility). My Duraludon would just need enough speed to outspeed them. So, what would be the benchmark pokemon to outspeed without tailwind?
I was maybe thinking about common Rotom sets, common Togekiss sets, rare jolly Tyranitar set.