No.
Delirium has a 1% chance to turn you into a monster that attacked you. Delirium is just for kicks-- as once you're turned into that monster, your attack abilities are severely limited. Im not sure since i've yet to play tcp/ip games with it, but i've heard speculations that it might be client side only, meaning only you see yourself turned into a monster -- you're DELIRIOUS!! i guess this item exists to humor the easily amused... it'll keep alotta people talking for awhile



Diablo clone is not a player, it's just another boss with special purposes(opportunity for players to get annhilius), and they decided to use Diablo's animations for that boss.