Annie: Burning up Bottom lane
Annie has a targeted stun, and has a 4 second cooldown on her Q.
Your job as annie is the same as you would with support Leona, or Support Blitz.
You create kill potential on their bottom lane, or you assist greatly in ganks.
You can potentially bait an inexperienced bot lane into death because of your stun.
Mid game, your strength is your AoE stun with Tibbers, your high base damage, and your Shurelyas helping out your team to retreat or battle the enemy team.
Late game, you still have your good base damage, a bit of tankiness from E+Aegis, and enough CDR to stun people a few times in a teamfight.
Vlad: Annoying 101
Level 1 Q hits for 125 damage and heals you for 55.
Basically, your job as support vladimir is to poke their carry and force them to back, or give your AD kill pressure.
Mid game, your Aegis and DFG will be very helpful to your team, and your ultimate's damage amp will help in aggressive fights.
Late Game, you pretty much lay down your R, DFG someone squishy, unload your combo, and if you don't die you pool out. If you're way ahead, you don't have to pool out.
Teemo: Never underestimate the power of the scouts code.
Pretty much same as top lane teemo, just auto attack and Q, but this time you don't have to worry about csing at the same time.
Early game, your job is to do crazy amounts of damage to their AD carry or support if they get within range. You also have move quick so you can get an oracles and ward clear fairly safely.
Mid Game, you are basically supposed to hit whatever target is available, and try and get a blinding dart onto their AD carry.
Late Game, you are a Shroom bot, and you can Blinding+DFG their carry if the situation arises.
Xin Zhao: Terror of Bot Lane
Bot lane xin is part of a kill lane like Graves+Xin, or Corki+Xin, anyone with burst or cc really.
Early game, you can do huge damage to an AD carry with your combo.
Mid game, you can jump into their team to catch their AD out of position, and are still pretty tanky because of shurelya health and your ultimate resists.
Late game, you are still going to focus their AD and hope you get your knock up off before you die.
Xin Zhao basically creates a chaos that the other team has to deal with.
Kassadin: Lol what wards bro?
Kassadin is pretty much stuck silencing people for his first few levels.
You can clear a ward if your AD Carry is sharp with your W because it resets your swing animation.
Early game, you are basically a Q bot.
Mid Game, you clear oracle wards with R, and can roam gank with your E.
Late Game, you charge up a big R, exhaust the enemy AD carry and dump your load on them and hope your team follows up.
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