Well 1.0 is very special and kinda raw, you get shit, everyone stronk, no cooldowns on spells for some enemies (durance is literal fire), diablo spams deathbeam, and of course, something I wonder how players would have reacted to today, every monster is bugged with x5 attack rating, making some, like birdies, 1-shot you. When I got enough Revives I brought a whole pack of super birds to Diablo, did reasonable damage to him. You can gamble for uniques with good chances. Chaos Sanctuary has monsters cast Iron Maiden, etc. Rares and in particular Pikes are very powerful, and barb Whirlwind is not fixed and attacks every frame. Corpse Explosion covers whole screen, Revives are brutally strong, Thorns/IM actually viable.