The only role that can viably buy an early Vampiric Scepter is a jungler. This is because lifesteal procs off auto attacks, and in early game you should not be auto attacking creeps because it will push your lane too much.
One of the main ideas behind stacking Doran's is that it provides a cheap advantage for early game harrasment. If two champions with similar base stats are harassing each other, the champ with 2 Doran's will have greater sustain in lane and most likely will win the harrasments. Having more health allows you to win the skirmishes against your opponent, survive jungler ganks, last hit easier, and stay in the lane after a failed jungle gank or harassment.
This does put you behind for getting your first big purchase item, however given that a B. F. Sword (the most common big purchase for AD champs) is 1550g, spending an early 475g on a second Doran's, and consequently getting greater CS (note that after ~25 CS the dorans has paid for itself) and champ kills, can actually allow you to get that B. F. Sword sooner.
It depends, I like to choose a support based on the ADC early game play, if the ADC is squishy, let's say for example Ezreal
, I'm more likely to pick Soraka
or Sona
to sustain him on lane. But, if you have a more sustainable ADC, you can pick a more aggressive support like Leona
, Nunu
or Zyra
.
Another thing to observe is the synergy of Support/ADC level, Leona
has her Q,W and E ready by level 3, which can combo really good with Graves
, where in this level he's really great. We could also mention some good combos like Ashe
and Janna
, due to the synergy of Janna's Shield and Ashe's crit, and Ashe's slow with Janna's slow.
Besides, picking a champion that you enjoy playing, which will also help in your performance, you could ask the ADC which support he enjoys to play with, if he has any preference and you feel his preference is useful, you could pick it too.
I found the League Support Suggester, a recommendation software to provide the best support for your current needs.
I've also found the following chart which really helps me when to choose a good support for my ADC, I usually pick one of the three recommended:
Best Answer
Cull is essentially the "I want to get to mid game safely" item for an adc that can farm. It's safe because using its stats only requires you to last-hit minions and will give you back its cost in 100 cs. This is unlike Doran's blade, which lends itself to trades (via HP and lifesteal) with the enemy duo.
You don't see Vaynes build Cull due to her kit's design towards trades (auto reset, 3 hit passive proc, hard cc, invis on ult). She also has short range which makes farming much harder to do without engaging in a trade so you probably won't end up getting the Cull gold passive as easily as you would with Ezreal or Caitlyn.
I think your mistake with Cull is thinking that it lends itself to scaling adcs. Instead you should ask yourself if:
If those are both yes you're fine getting a cull. Also Doran's into cull is pretty good if you find yourself behind in lane because at that point a) is true and b) might not be true but farming might be all you can do if you know you will lose trades form being behind.