Rod of Ages

Best on scaling mages like Veigar, Vladimir and Kassadin. Skip it if the game ends fast — Luden's spikes sooner.

Stats

Veteran
Gains a stack over time, each granting bonus max Health, Mana, and Ability Power — up to 300 Health, 700 Mana, and 100 Ability Power when fully stacked.

Veteran: Gains a stack over time, each granting bonus max Health, Mana, and Ability Power — up to 300 Health, 700 Mana, and 100 Ability Power when fully stacked.

From WildPick's recommended builds

Sustain