Question on Mareanie and Mimikyu

[Pooh]

Hello, I have quick questions about battle set.

I have two Mareanie perfect 6IVs that I got from wonder trade. I am wondering if anyone here can help me what type of set I should focus. I am really new to competition/battle place.

Here the info of Mareanie
Nature: Bold
Ability: Regenerator
Move Learned: Toxic Spikes, Wide Guard, Toxic, Venoshock

Nature: Relaxed
Ability: Merciless
Move Learned: Swallow, Stockpile, Spit up, Haze

I also have Mimikyu 6 perfect IVS
Nature: Jolly
Ability: Disguise
Move Learned: Splash, Scratch, Astonish, Copycat

Thank you for all the help.