I heard Lethal talking about his Maul Pure and I was wondering:
1 - What builds you have beyond ironman, skiller, and (I don't know what you call the all-around build)?
2 - Which one do you like playing on the most?
and 3 - did you fund the builds from another char?
Also - if you have anything you would do differently...

(I only have MaraDerkholm and another char that I started because when I made Mara - that was not her name because I didn't realize that the user name was the same as the char name)

On rs3 I guess pure builds are ruined since eoc.
On oldschool I have a 1 defence pure, the most common of pures and also a defence pure which are accounts with 1 attack, strength, magic and ranged, optional 1 prayer or not and high defence, the propose is to hit 75 defence for the dragonfire shield and serpentine helm, the shield hits up to 25 with the fire and the helm causes the opponent to get venomed which is a stronger form of poison which starts to damage 6 and goes up 2 damage every minute or so up to 20 damaged. They are optimal for armour stakes and fighting obby maulers.
My 1 defence pure is self sufficient, my defence pure is not at the moment but I can easily make it self sufficient if I have the patience to get some profitable skill high enough like runecrafting or hunter or mining etc.

I've had two maxed skillers which were by far the most fun until spins ruined them (and during).
For unusual accounts, I had an account 99 Hitpoints with everything else level 1 in 2009 which was the lowest possible total ever.

I have my account "Lethal" which is the account you are speaking of with 55 attack and 85/99 str with 1 everything else other than 31 prayer and constitution of course.  Pures absolutely are not ruined since EOC, seeing as we have this beautiful world called Legacy

Also, self sufficient

1. On RSC, I had various account builds, e.g. an original plate pure and a pure mage/def staker. These days the only pure I have is my skiller, which is practically the same as having combat as far as efficiency and grind go (Pay2Win methods rule both).
2. I loved all my accounts equally!
3. I funded all my pures on RSC with my main. It wasn't frowned upon then as it later became (pretty much every pure had a mule account for example), maybe because goldfarming wasn't widespread and it took quite some time to get wealth.
4. I wouldn't have made a pure skiller if I knew how the game would have turned out. Two reasons hold me back from getting combat now. A) I've got too far and if I wanted to play combat, I could just as easily make a new account. B) I'd be overwhelmed with things to do and I only really have the inclination to play AFK content.

I've had a few pures since starting playing. I almost maxed one before EoC came out but after seeing the new combat system I made a skiller, as I'd wanted to make one for a while but would have always rather trained my pure.