Need help deciding a 3rd champ
 

there is one static player- Lux
other is a preferably a Garen
need help picking what the 3rd should be im thinking maybe gp but i dono
give me suggestions plz

Try to pick someone with heavy CC or High burst potential.

I'd say an olaf/teemo/naut/xin/cassieopia would fit nicely

Someone who can jungle

Kayle could be a good match with this team.

I'd also agree a beefier jungle would fit nicely, like a mundo. something like gp or riven or olaf might do nicely though if you coordinate well together though

edit: soo an AD champ, since lux is all ap and garen does a bit of magic, and avoid a squishy if possible. If they can jungle, then even better

Olaf is amazing on this map.