Yemachu

Was more thinking of Valentine, Easter or April fools, but I could have missed another "important" one (similar to the 14th of March: world Pi day).

But if enough people agree, we could skip them.

What is the next event that warrants a festive logo?

Sacred Summer has taken most of my orbs, and duo Ephraim will soon make his return, so I will be skipping this banner for the most part. With a bit of luck I might be able to get one of the focus units for my free summon.

A question about which one is "better" is somewhat hard to answer objectively, if no criteria have been specified. If only looking at the raw stats of a unit, you will find that a +10 merged 4 star unit will have higher stats than an unmerged 5 star version of that same unit. Especially when you factor in that a flaw gets fixed by first merge (accounting for about stat 3 points). They however don't benefit from the added score of "Red/Blue/Green/Colorless Duel Infantry/Flier", as those specifically require the unit to be 5 star. Those skills are quite rare, and not that great.

Something to consider though: most units seem to get a personal weapon down the line, which they can only learn as a 5 star unit. If you have a 4 star +10 unit that recently got a new personal weapon (say Gwendolyn), you'd have to waste a copy by promoting one and merging the 5 star version in the 4 star one. If you later decide to promote such a unit to 5 star and start merging them to +10, you have wasted yet another 10 copies. This shouldn't matter for certain units, as they seem to show up often, but still.

With combat manuals being a thing, space shouldn't be an issue while working towards a 5 star +10 unit. If on the other hand you are creating some spare units for Arena Assault where you don't really care for the unit (and they don't have that great fodder either), it can be worthwhile to merge your Bartres/Raighs/Whatevers, and give them some cheap skills like "Triangle Adept 3" and "… Breaker 3"; it should lets them be rather cost effective counters to certain units; the extra stats could help out in some other match-ups.

Hosting a competition to determine a mascot could be a fun way to get the community involved with the card maker. As I'm planning to bring back theming to the card maker, some top picks could each get their own theme. My only fear is that the community picks a mascot that I feel is hard to incorporate (far too detailed for example).

Had to look up what a Neopolitan  was. I don't think Icecream makes much sense as a mascot for a cardmaker.

The thing with Kuriboh (and any other Yu-Gi-Oh monster) is that they make less sense once other card games get added to the card maker. I have thought about Mokey Mokey though. I any case, it isn't a high priority.