Not being an expert, especially in the duel sector, I still join the previous questioner – why always? My thought is that you can divide the assassins a little differently than in the replay, because I didn't like the division there either – but for a different reason, namely: you can divide them according to the scheme of all assassins + 1 assassin. Of course, it is also not necessary for them to disappear at the same time, but it is better to keep one unit on the battlefield and disappear "quietly" later (:D). It seems to me that this approach expands the tactical capabilities of the Warlock.
Replays) Quite a few have accumulated; I note that the victory over Roma was after my 4 defeats. He is still very strong, and victories over him are hard-won.