Hey there - league Veteran with way to much time spent in-game - I also main support and have been playing that way for a long time - generally play @ high gold to platinum levels. Could go farther, have a kid - so too busy to really play seriously.
1.) Most players have a build in mind when they start, this is generally learned through play experience, or watching others, or 'build' websites. All 3 are viable. The recommended tab can work, but know that it is often outdated, and does not account for what items are 'hot' - Leagues state of balance is always changing, so certain items that are good for 2 weeks will often become not good after they have been nerfed. For example,
is currently very hot because it's active heal is pretty nuts - but this is going away with the next patch, and its health is getting reduced significantly - going to see less use. Experimentation with items as you play is one of the best parts about league. I'd suggest watching someone better than you, and learn from them, then make your own adjustments as you play and learn.
Furthermore, once you have your core build down, you'll want to have some alternate items ready for specific lane matchups and when players on the enemy team get fed. This is really important, and often separates Silver and Gold Players from Plats. As an example, if they have a fed mage in the mid-lane, you should be thinking about building a strong MR item like
. Also, with the Botlane meta shifting towards AP focus, and potentially seeing some AP-Carry focused picks (Like Ziggs in the ADC role?) This change in item build will be very important.
Sorry, that was way longer than intended....
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2.) ** This is a very difficult question to answer, because it really depends on where the enemy is at the time. Positioning and harassing is critical to the support lane, and something that can't really be explained in a paragraph. But, some basic tips:
- Anytime either team can force a 2v1 scenario because someone is out of position, it can be a HUGE advantage for them - do not let this happen!
- Learning what distance is 'safe' is different for every support in the game - This is something that is learned through play - each time you die, remember how, and try not to be there next time - Got hooked? Bad positioning... Got flashed on? too close... Got poked out of lane? Try to stay mobile....
- As a support, you are intrinsically paired with a partner. Sometimes you will be in love with them, other-times you will loathe them - It can get rough. Try to communicate, and if push comes to shove and it gets toxic, stay safe, and let them play dangerously.
- The closer you are to your own tower, the safer the lane is from ganks. The farther away you are, the more unsafe you are. Platinum+ players are generally aware of the potential of a gank - so they will instinctively pull back from pushing once they are past the river. Past the river means its dangerous. Be ready for a third party, and ward that river. Good players will also TRACK the jungler as well, to know if something is safe to push or not. Maximize their pressure on the lane.
Thats all I got this morning - goodluck. If you ever want to play some games, just add me.