Reinhart and Olwen emblem feasible?

I was pity broken by green Olwen, and I like building emblem teams, so I was wondering if a team with all 4 of them would work well. They would all have cavalry buffs, and I'm thinking maybe regular Olwen should get an owl tome and counter ranged units. Other than a notable lack of a mage/bow counter, does anyone have any ideas or suggestions?
Thank you