I could solo it on level 1. Tried it several times now with two other players on level 2 and then 3. Final boss phase guaranteed fail as no one can beat all ogres before timer runs out. Tried it from distance or with swords, no matter the ogres beam down everything approaching them and protect each other. I believe it takes way more players in order to succeed, 5-6 most likely minimum. For sure they have overdone it. Maybe it was too easy but now? Very hard for basically no benefit.