Wondering If any superior player's could tweak my item set/runes for 
[P3+]
Rune page 1: Armor Reds Flat Hp Yellows Flat MR Blues Armor Quint x1 MS Quint x2
Rune page 2: Armor Reds Flat Hp Yellows Scaling MR Blues Armor Quint x1 MS Quint x2
Keystone: CotC
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Build path:
Opening: 
Rush: 
_Early Item Options: _ 
Situational Options:
Here's my 2 cents. Alistar has fairly long cooldowns early on. While he builds CDR later on, having 12/13 seconds on your Q and W is a real killer. For example, once you use your Q and W really the only thing you have left is your autoattacks, discounting your E. So for somebody that has extremely long cooldowns and an ult that gives him DMG reduction, going 100% tank runes is a little counter productive. Consider putting some AD in your runes so that during your combo's down time you can actually do a little damage instead of walking around while your adc 1v2's.
And seeing as Ardent Censor is busted at the moment, have you considered going Stoneborne Pact and rushing that item? Seems like a pretty good combo with your CC and your passive heal.
Just one thing to point out
The gold income from coin is far better than relic atm. Might mean less health in the short run but more gold over the entire game.
