Must knows: always check Academy for items, never run this comp without extra copies of Lux and Zyra.
Tank itemization: whoever you 3-star priority Leona-Irelia-Singed unless it's mega BIS Illaoi.
Synergy priority: Sentinel - Academy depends on if you want Academy Items.
Put main carry items on Lux as she is better early, then put them on Zyra later as she has AOE.