You can't milk those
Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Threats to Alistar with this build
Hello players! This is my guide for Alistar support. Many people say that Alistar sucks, but trust me with a bit of practice you will become a bit*h tank support denying everyone with Q and W. I am Alistar main and I love playing support. NO supporting your ADC is not borring and it feels badass 'cause saving your ADC, tanking turrets and denying Nocturne ult while your team gets drake is pretty damn AMAZING!
Nothing complicated 9 Armor Marks, 9 Scaling Health Seals, 9 Scaling MR Glyphs and 3 Armor Quintessences, makes your mid and late game be tanky. These runes are pretty much default for tanky supports.
0/12/18 is what you want to do with Alistar. The Windspeaker's Blessing keystone is very powerful for Alistar, because of his spammable Triumphant Roar (E).
Abilitys and Combos
Pulverise (Q) is an amazing ability, I mean - sure Headbutt (W) has more damage and scaling but you are a support and you dont need that and Headbutt without Q is bad (check the combos). Triumpthant Roar (E) gives you and your allies some health, while using it try to heal as much targets as possible. Unbreakable Will (R) is perfect for tanking turrets and also gives you some damage.
Combo W + Q. After you land your Headbutt (W), use Pulverise (Q) as soon as Alistar reaches the target, that way you will not knock him back (you don't want to do that unless you are trying to escape) but you will do the damage and knock him up instead. For begginers it is hard to time it but again you just need some practice. Landing Q to early will result you just crushing nothing and denying your own ability (W). Landing Q to late will result knocking him back and crushing nothing again, in some cases the get knocked back and up at the same time which is weird.