Man, pulling Zenobia in 'Fate/Grand Order' was such a journey for me! She's a limited SSR Archer, so it's all about timing and saving those Saint Quartz. I remember scrounging every free SQ from events and story chapters for months before her banner dropped. The gacha rates are brutal (1% for SSR, 0.7% for her specifically), so I'd recommend waiting for a rate-up campaign or GSSR banner if you're F2P.
Pro tip: Check the 'FGO' wiki or community calendars for banner predictions—some servers (like JP) get her earlier, so you can plan ahead. Also, don’t sleep on the 10-roll guarantees; singles feel tempting but rarely pay off. When her banner finally came, I blew 300 SQ and got spooked by Arjuna first… but that second 10-roll? Pure serotonin. Now she’s my go-to for breaking enemy defenses with her NP’s ignore invincibility gimmick.