Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
I suggest that you carefully read the giveaway rules again. If you want to give away a Pokémon you need to list the natures, IVs, EVs, etc of the Pokémon you are giving away, just like the main Wi-Fi forum.
Also, we do not allow giveaways in exchange for battles, the Pokémon are supposed to be free to give everyone the same fair chance of getting one. Feel free to take a look at the giveaway threads of your fellow users and see how they organize their giveaways!
I just spoke with a fellow moderator and we feel like it's still a bit early for you to host a giveaway in our section. I suggest that you first familiarize yourself with how things work here. As for the IVs, you can find them when using the judge function of the PC in Generation 7 games: Best = 31 IVs, Fantastic = 30 IVs, Very good = 26-29 IVs, Pretty good = 16-25 IVs, Decent = 1-15 IVs and No Good = 0 IVs.