Well, since your number 4 implies infinite patience (which I know some people do have =) then it is possible to perform this feat at level 1. Taking "patience" to absurd limits, we can search forever for the following items: wand with +3 skeleton/skeleton mastery/teeth, necromancer's shield with +3 skeleton/skeleton mastery/teeth. We would also probably need 4 chipped saphires to put into armor/helm, and 10 +7 mana grand charms with 10 +stamina small charms. Of course, we cannot forget a full belt of mana potions; hopefully at least light mana potions.
This should provide a decent mana supply, in the range of 150+, and lvl 8 skeleton and lvl 8 skeleton mastery with skill shrine, with level 8 teeth. The single point will go into amplify damage, giving level 3 amplify damage. This would give you 4 skeletons with 150 life and ~20 damage each before Amplify damage. With skeletons doing some tanking, and you pounding the cows with teeth and casting occasional Amp to help your skeletons, there is quite a possibility of this working. Sure, the skeletons won't last long against the onslaught of cows, but they only need to tank long enough to make some corpses from which new skeletons can be raised. AFAIK, the skill shrines regenerate, thus if you note the location of several of them, you can essentially have almost unlimited +2 skills.
Of course, we are being a "little" unrealistic here, but now it gives a little more thinking room. allowing for things that one would avoid otherwise =)
This should provide a decent mana supply, in the range of 150+, and lvl 8 skeleton and lvl 8 skeleton mastery with skill shrine, with level 8 teeth. The single point will go into amplify damage, giving level 3 amplify damage. This would give you 4 skeletons with 150 life and ~20 damage each before Amplify damage. With skeletons doing some tanking, and you pounding the cows with teeth and casting occasional Amp to help your skeletons, there is quite a possibility of this working. Sure, the skeletons won't last long against the onslaught of cows, but they only need to tank long enough to make some corpses from which new skeletons can be raised. AFAIK, the skill shrines regenerate, thus if you note the location of several of them, you can essentially have almost unlimited +2 skills.
Of course, we are being a "little" unrealistic here, but now it gives a little more thinking room. allowing for things that one would avoid otherwise =)