Are gold seals worth taking on midlane mages

For the most bang for your buck get scaling health yellows.

Health is valued at 2.6 gold per 1 health.

Scaling Health Seals give you 1.33 health per level and a full set gives you 11.97 health per level. (Rounded up obviously)

12×2.6= roughly 31 gold per level.

At level 18 your health stat increase from health/lvl seals will be worth about 560 gold.

nope they are bait

Why? You aren't gated by gold income.

scaling health gives you more gold value than gold seals.

so no. (and games dont last long enough for gold seals to mean anything).

Scaling HP/Flat Armour seals are the only seals you should ever use unless you're playing support. Everything else is just incredibly niche or incredibly gimmicky.