So as we all know, every team comp generally wants to have the following at a minimum:

• a DEF breaker
• elemental shenanigans (i.e. tank, DPS)
• ATK buff
• cleanse/immunity/heals as fights require

Sorry if I didn't expand much on elemental shenanigans, but it's generally going to be something like if you're fighting Wyvern, you'll want Ice-elemental DPS (Kise, Sez, Karin, Chloe, etc.) and you'll also probably want an Ice-elemental tank (Angelica, Krau, Tywin, etc).

I've been playing on an alt account recently, probably about 3 weeks now. It seems kinda good, and has pretty much everything that people would want and suggest (e.g. Angelica, Achates, Kluri, Bellona, Cidd). But I find that compared to my main, it has one really lacking thing compared to my main: there is no chance for this alt account to ever get Diene. Having been using Diene a lot on my main account, that ATK buff void seems like a significant void to fill.

Thus said, I find that a good enough party ATK buff options outside of Diene are actually relatively rare. Off the top of my head:

• Hazel: Basically the most accessible of the lot, due to being available in connection quests. However, I don't know if it's generally worth trying to run her as a Diene alternative (e.g. Diene Angelica, Diene Destina are two popular combinations, so I'd be running something like Hazel Angelica, Hazel Destina instead), I don't know if she'll ever be as tanky or as fast as SPD Diene (she has 8 less base SPD compared to Diene), but it's certainly worth considering, especially since she has an SC now.
• Rose: also gives a small amount of CR (about 15%), and can be used as an Ice tank with Aurius. Only problem is being 4* base, can be hard to get.
• Helga: a 3* base, so not too terribly hard to acquire, however as someone who has never used her before, I've heard opinions on her being quite squishy for being a Warrior, and her ATK buff doesn't last long enough for her to efficiently cycle through it (the difference of a 2 turn ATK buff vs. a 3 turn like Diene). I hear she's slated to get an SC some time soon however.
• Yuna: IMO, probably the next best thing to an alternative to Diene. Also only has two turns, but I guess at least you can equip Infinity Basket on her and hopefully have higher overall DPS? Just a hell of a grind to get her.
• Aramintha: Also 2 turns on her ATK buff. Also stupid rare because she is a 5* base.
• Maid Chloe: If Aramamintha is stupid rare, she's practically non-existent unless one rerolls. Nat5 ML. She notably has 3 turns on her ATK buff however, but it also has 1 more turn of cooldown compared to Diene's.

I realize that comparing these units to Diene is really not fair - Diene is really a top tier unit on her own right. But as a side, I am also doing this to see if there are any options besides Diene because I'd like to think that Diene makes things so much easier, but she is never ever required.

If you guys have any thoughts or ideas, I'd love to hear it!