I got all 3 star ember from Halloween shop but I can't decide how to use them. Which path is better between levelling my 1-3 star servant with its or burn its for mana prism to get chaldea lunchtime.
If you want to you could always use them to level up your servants but I still find more value on using 3 star exp cards for mana prisms and 4 star exp cards for leveling up servants no matter their rarity.
And in the long run, Chaldea Lunchtime is very valuable when limit broken and we won't see it again for a long time. When it does come back it will be put into the Rare Prism shop where it becomes much, much more expensive.
I'd say burn until you have enough to MLB lunchtime, and then start levelling NP. If you roll fp gacha enough you will eventually NP5 every non-limited 1-3 star servant anyway, just a matter of time.
3 star embers are better used burned for mana prisms.
They become sort of useless when your servants reach near lv 40, more or less. Too few exp at the cost of way much QP.
Depends entirely on what you value most. For me, I'm trying to level all the high tier servants so I tend to use my 3-star EXp cards on my servants because I'm a nerd like that.
The sane thing to do is probably burn them for mana prisms.
