Soo...
×Have any of you except zex played Tower of the Sorcerer?
Because I am very surprised by people's comments... the HP, Attack and Defense are pretty straightforward.
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×You have 28 attack, the enemy has 3 def, this means you will deal 25 damage every round. The enemy has 80 hp, so 4 hits of 25 damage each will destroy it. However, the enemy only deals 60-28=32 damage per round, but the "expected damage" is 160.
I think the initial HP was 130, and it was already hit twice in the situation we see. This would also mean you had 470 HP before the start of the fight.
I'm also pretty sure the lightning improves your attack/defense, and potions give you HP.