Talk:Orianna/@comment-25620056-20151002041328/@comment-5955640-20151002050741

Both are fine and at least one of them is mandatory.

Tear you have to buy as early as possible and then you have to wait a bit before you upgrade (and it takes a bit of gold to fill that gap now that it does more damage).

Catalyst and Rod of Ages you need to buy before the laning phase offcially ends. Catalyst is good for the lane sustain but upgrading to Rod you start getting the benefits of Catalyst while also letting that 20 minute drip of mana, health, and Ap fill you.

I think i've mentioned this before but Seraph's Embrace is much nicer when you are just buying a ton of mana already because you get free AP based on the mana you have.

Rod Of Ages is really better on AP tanks to be quite honest because resistances make the health last longer and it's free AP over time which you won't be buying much of.

Athene's should also be up for consideration but chalice won't really keep you from running out of mana if you don't manage your mana (none of these items will for the laning phase) and the part that sort of stinks about Athene's is that you don't get a lot of AP and you don't really get any extra magic resistance. It has the best mana regen you can expect to have as a mage but aside from that and the CDR it's bad to rush because it has little damage and doesn't shore up resistances.