So to start out the game pick up a doran's blade and head to lane. If the jungler needs you to, help him with blue, if not, coordinate with your support to go for first blood. With your passive and volley you can instantly hit for 250+ damage on the enemy support or ADC. Otherwise, play passively early and farm up so you can get avarice blade and get tons of gold

After you've picked up avarice blade, and maxed your E, every minion kill grants you 7 bonus gold, in other words, every 3 CS = 1 CS in bonus gold. Add Twisted Fate to your team for added effects. this essentially means that you can farm 33.3% faster than the other ADC, because they wave of 6 minions equates to 8 minions worth of gold for you. Farming should be your only goal in lane.

So at this point, dragon's made start to be attempted, and the enemy team may have lost top, or won top, and maybe lost bot or won bot. Either way, odds are they're going to group with at least 3 in mid and try and push. Ashe brings a lot to the table in team fights. If left unfocused, she can decimate enemy teams in very little time, because she gets stronger then the enemies ADC so quickly. Her ult is a great initiation that doesn't require her getting in danger, and her volley provides great poke against their whole team. Ideally you want to position yourself at the back of the team, never getting closer than you have to. Your goal isn't to focus the other ADC, your goal is to safely dish out as much damage as you can without compromising your position. This DOES mean that sometimes you will have to focus tanks, and your team will rage at you from time to time, just ignore them and move on

Congratulations, nobody surrendered and you've made it to late game, however its not all its cracked up to be. Your respawn times are about 60 seconds, so 1 fight could win or lose the game for you. Ashe starts to lose some of her dominance at this point, because the other teams carries have caught up in gold and are on your level. Not to say your useless, because that's never the case, you just aren't the force you once were. Play very cautiously and don't go anywhere without your team with you. Remember to hit as many people as possible with your ult, and poke with volley when available.

Ashe has decent level 1 kill potential, but if you cant secure that first kill, you probably won't see another one come unless the jungler ganks. Ashe is perfectly fine going 0/0/0 and getting 200 CS in lane. Remember that YOU ARE THE CARRY. Your team is relying on you to carry them to victory, so don't run into 2v3's and put your team at a disadvantage. Always keep an eye on the minimap, and fire your E often for increased map awareness.