Yet another questions about this event

1- Use Chocolate Angel on all of your party members and a support with Cute Orangette, also use the mold to select the enemies you will be against, that should be 20 bonus drops per run (i'm assuming you have enough leveled servants on each class to complete the quests);

2- Eventually when you have all the copies of each CE in the shop you should MLB both so that you have more flexibility in you party;

3- Always use molds to maximize your drops, if you are out of molds, buy more from the shop, they are worth it. I saw somewhere that you should consider saving the caster one for the highest difficulty quest ta will be available later to farm materials;

4- After buying the CE's you can buy whatever you want from the shop

I think the most important point to make is that it's absolutely worth it to use molds and focus on a single class. If you go in to the knights node using all shop CEs, and a support MLB shop CE for a total +13 to each type of coin drop and get, for example, 3 coin drops of each type, you would earn (2 base + 13 bonus per drop) x 3 = 45 per class, for 135 total.

On the other hand, if you go in to the knight node using, for example, a full Saber team using 5 Chocolate Angels, a 5 star gacha CE support and a mold to force Lancers to appear, you get +20 to lancer drops, so if you got 9 drops again as in the previous example, you would earn (2 base + 20 bonus) x 9 = 198 coins total.

I used the 4 star CEs for my example, but if you have any of the gacha 5 star CEs then they just increase the difference even more sine they give a +5 to coin drops instead of + 3. Similarly with supports, you can use a MB shop CE servant for + 3 to all drops, or one with a gacha CE for the +5.

Since you are fighting a single class, you can also steamroll the enemies with class advantage, whereas if you don't use the mold your servants can be vulnerable to running into random enemies they're weak to.

One or two All Coins can drop randomly even if you've used the mold, but they're rarely enough used that you'll probably accumulate enough as you work your way through the other coin classes.

I haven't prioritised the shop CEs yet, I'm doing Valentine CEs first, but they're worth getting, and probably before mats. I suppose you could Limit Break each and then use a comp with 2 shop CEs, 3 Chocolate Angel and a support 5-star gacha CE. That would give you 50% NP on two of your servants to kickstart your team, and the MLB shop CEs give +3 coins, so they can be swapped for a Chocolate Angel with no loss of coins. Doing that would give you +20 to weak class drops and + 3 to any All coins that dropped.

The 4 star Valentine CEs aren't really great for farming compared to the shop and gacha CEs, they're only a + 2, so they're more something to do if you want to, you can safely leave them till last if you want to make sure you clear the shop first.

Get CEs first to maximize drops. Molds do matter. I have a friend who has a CE on his beserker for +6 to drops so i have been using beserker molds to maximize chocolates. However you want to set it up, they can be EXTREMELY useful.