Thosha I start by targeting the Warmaster. Even with all of them concentrating, he can't be brought down in hte first turn. Therefore he paralizes someone. That loses the battle. Even if the paralysis misses, you still can't do enough damage to bring them all down. You only have 59 orc essence to build the team.
Three orcs = 30 essence
orc blades = 10 essence
orc amulets = 5 Essence
two levels each = 10 essence
Including the orc equipment found, that still doesn't do it. Even with the Great Orc Helm, you can' do enough damage.