u/depressivoptimism

Hey guys I'm around 16 and have been playing mtg since I can remember with my uncle, and started playing edh 1-2 years ago. My little brother is around that age and has been getting really into it as well. One problem... Whenever I play with him he says the way I play is boring. I want to be able to foster his love for the game but I love having very combo intensive decks that take longer turns... here is what I have come to decide. I want to find a commander that can fit my play style(doing a lot) but be able to do it fast for my little brother's sanity. Do you guys have any commander recommendations? I would appreciate it if you did..