Talk:Teemo/@comment-33721206-20151010083037/@comment-24385282-20151215004028

Easy to beat Riven on Teemo, he basically counters her. Just keep autoing her throughout laning phase but be careful for minion aggro. If you can blind her when she goes in, that takes off a considerable portion of her damage (even if she is a caster, basic attacks are huge part of Riven, especially considering her passive). Because of this, you should always max Q versus Riven.

I personally take Thunderlord's Decree on Teemo and go for full AP with Lich Bane and Liandry's. Even before you start getting those items, your AA-Q-AA combo does tons of damage early game with that Keystone Mastery plus a Doran's Ring and some AP Runes, so you should be able to keep Riven wary of going in on you without jungle help or at least one summoner spell. If this is Ranked and you know you'll be up against a Riven, consider taking Exhaust with Flash, but you generally won't need it.

Focus on poke early game, and don't disengage unless you're worried her jungler is nearby (map awareness and good wards should negate that, though). Just fight her - she should have to come into your minions if you're positioned well, and when she's blinded she's limited by her cooldowns, which are high early game. Her stun and knockup are useless when she can't follow up with AA damage - until she gets a lot of AD, she needs those autos to trade properly.

Between your autos and poison and minions, plus the fact that she can't attack you, you will definitely win the early game trades. If you play your cards right you'll snowball off of that into an easy lategame, too - those shrooms will keep you safe from ganks for the rest of laning phase post-level 6 and your AA-Q-AA combo will give you some insane assassination potential that enemies walking into your bush won't see coming even with wards. Max Q, get Thunderlord's Decree, then go Lich Bane + Liandry's into a full AP build (Luden's, Rabadon's, Morello for that spammable Q and shroom fields, etc.).