I’ve started rushing level six and don’t itemize until krugs. Assuming you get at least one gold drop from the first three pve rounds and get a two cost from spawn carousel (to sell for two gold), you can always hit level 6 before round 3-1.
I don’t itemize or build a comp until that point, and if I lose the first few pvp rounds it just makes me more likely to get a useful item from carousel after 2-3. I don’t ignore comps and plan around my first few champ buys but I don’t settle on a comp until that point, generally because by then I can also determine what kind of comps everyone else is running and plan accordingly.
The entire purpose of why I do this is to rush a 4/5 cost unit and get it on the board while everyone else is still level four. If you can get a draven/akali/cho/etc out by 3-1 you get a huge powerspike.
Even if you have all one stars, there’s a huge chance that you can still overpower anyone with a star advantage on you.
It’s like a guaranteed 4th place or higher if you’re smart about it. It’s the easiest way I’ve found to climb ranked. You might not always get first but you’ll still get ranked xp.