Celtic Heroes

Like 1.2 on hp and 2.7 on energy, without maxing energy boost (10-15 points) and stacked with energy boost at all times my energy was stable and when I thought it started to go down I'd let sigils pop in (once or twice per lix)

How much e regen per tic is a maxed e-boost about?

It depends...
Lv 40 or 50? Which Ice magic and focus values?
Maybe just see it yourself when using the alt book.

Like 1.2 on hp and 2.7 on energy, without maxing energy boost (10-15 points) and stacked with energy boost at all times my energy was stable and when I thought it started to go down I'd let sigils pop in (once or twice per lix)

How much e regen per tic is a maxed e-boost about?

TBH I don't even remember the last time I even touched my mage, sorry dude.

It depends...
Lv 40 or 50? Which Ice magic and focus values?
Maybe just see it yourself when using the alt book.

Near endgame unless you're focus crazy the values don't change too much (only the effect)
But maxed boost was keeping our tank fresh on energy throughout Proteus.

I'm at 3300. Pretty happy with it, but my general rule is, if you run eshield, you should have at least as many as it would take you to regen your eshield energy cost in one tic.

Something I would use as a general rule is you want to be able to sigil your energy to full in about 6 ticks or less, or 30 seconds once you hit 215+ any more time than that and you are losing quite a lot of DPS being out of combat. Anything below 215 you can probably remain full on energy with just an e-lix so enough sigils (like 500-1500) to regenerate after solo kills etc should be plenty.
For health I'd suggest about the same, 30 seconds, but the energy sigs are going to be the most important.