There is a reason that RoA is core most games . It gives you a bit of everything . You need Mana , HP and AP as your first buys . Other items will give you a few things but RoA gives you everything you need as your first item . If you prioritize other items you will be missing out on at least one of the 3 important early game stats . Also the sustain from Catalyst is extremely good . There also different ways to play everything , I have my way , and you have yours . There is nothing wrong with preferring Regen over a large Mana Pool , but I disagree with you on which is better . I didn ' t say you need more than 1 mana item , I just said you needed some . I should note that I haven ' t been playing much lately , and I forgot about the Morello changes . It used to not give mana at all , and I am pretty sure it didn ' t always grant back 20 % Regen in my opinion is sub optimal compared to a large mana pool . Dangerous Game restore 5 % of missing health and 5 % of missing mana . Another reason why a large mana pool is better than regen . In most teamfights you can expect to get at least 1 or 2 assists and the mana gain back makes a difference in drawn out fights as you said . Again , I have done very little testing with no RoA builds , but it just fits so perfectly I don ' t think that there will be any changes it being core until Swain is reworked again in 5 seasons or so . I am all for trying new things , believe me I like to experiment but I think RoA is the one item you can ' t play without . Sometimes you can go for Hextech but like 95 % of the time RoA is correct . On a side note , you are being hostile and that I feel is completely unnecessary as I was just trying to give my input after you asked for it .