Man in the Funny Hat
Hero
1E and 2E both had such rules.1. If you had a missile weapon readied you could shoot it a the top of the first round for free (might have been only for x-bows).
BTB, 1E initiative was rolled for each SIDE with a d6 but then had a number of confusing and complicated means of adjusting it to determine which individuals actually went first.2. Group initiative with a d6
2E did use a d10 but had a VERY simple "Standard" intiative procedure, and then two optional approaches: "Individual" and "Group" intiative.3. Individual initiative with a d10 (almost positive this was 2e), but you had to declare your action before you rolled, with the dm adjudicating a speed modifier (in addition to your weapon speed).
Standard 2E initiative had declaration but not for any particularly compelling reason. Initiative was by side and although there were situational modifiers to the intiative roll for the side, nothing a character actually chose to do was going to alter whether they or their side went first or not in THAT round.
The two OPTIONAL approaches to intiative, Group and Individual, both used a much larger optional table of modifiers. Group still rolled by side but modified the roll using the optional modifiers; Individual rolled initiative for each individual but also used the optional modifiers. It was only the optional modifiers that provided a good reason for declaration and that was mostly just because of spell choice.
Since spells had different casting times added to the initiative roll without declaration a spellcasting player could game the system and frequently change his choice of spells to cast. In order to ensure that his spells were resolved before the opponent he could choose one with a shorter casting time.
Weapon speed was one of the optional modifiers.
Original/Basic D&D, and 2E as well.4. Actual death at zero hp, no minus.
Yeah, that would be a house rule although 1E was very close to that. If you reached 0 hit points or lower and revived you were in a coma 1-6 turns and regardless of healing were required to have a minimum of 1 week of complete bedrest before being able to do anything.5. For every minus hit point you went, you had to rest for one day, but minus 9 you had to rest for a month (85% sure this was a house-rule)
Polymorph Other for 1E and 2E was identical, requiring a System Shock survival roll (a % chance based on Con score)upon being transformed, and then there was an initial and then daily checks based on the intelligence for the target of the spell to assume the mind of the creature they were polymorphed into. Then when the spell was dispelled there was a second System Shock check.6. Polymorphing had both a risk of constitution related death (some sort of percentile) as well as the risk of accidentally assuming the ego of your new form, permanently. This might be a mash up of 1e and 2e, not sure.