Advice

As you could probably tell I'm no expert at the game but I did play my previous account for three years so... yeah, take this advice with a grain of salt. But it might help you...?

• Save your bookmarks for limited summons. As a general rule of thumb it's not recommended to pull on any regular RBG (Red-Blue-Green) unit banner unless it's a limited unit. You'll get all of them eventually. Hopefully. Event summons are always limited units and will most likely not come back.
• For energy, I use leifs ONLY DURING INCREASED DROP EVENTS. I have so many equipment materials (not upgrading mats though) so I really don't use Leifs on Hunts if Raid is running. I would if the upgrade materials dropped more frequently... and I use Leifs during increased rune drop events when I need to. Most of them are spent on grinding for catalysts now that the story mode system has completely changed.
• For the new player's selective summon with a free 5 star hero, I HIGHLY recommend Vildred for PVE farming. If for some reason you don't want him (or are planning to get Arbiter Vildred for the Moonlight Summon), Iseria is also a very good pick. Destina is the hero that everyone recommends now since she revives on her S3.
• Speaking of the Moonlight Summon, I know that everyone recommends Specter Tenebria but I went for Dark Corvus since he's a bro a great tank for PVP. Honestly just choose who you want. Arbiter Vildred, like I said, is good for PVP and PVE and Ruele is a wonderful healer with invincibility.
• See all those speed sets listed for the characters? Yeah, you're gonna farm Wyvern hunts a LOT. Angelica, Sigret, and Furious are all free units that you'll get eventually and Muwi is a three star hero so hopefully you'll get him sooner than later. Alexa is also a good choice for Wyvern hunts, no need to complete her speciality change if you want to use her.
• I highly advise against pulling the 'story banners' because all the units summonable are regular RGB units BUT some are very good to pull if you're having trouble getting them. Don't forget that the banner isn't a 100% chance! (I can't remember if there's a pity limit but if there is it's at 120 summons.) Recommended side stories to complete if you haven't summoned the character yet: Mort, Iseria, Destina, Roana. I would 100% recommend Mort for PVP. Iseria is a good choice if you haven't pulled her when the selective summons come up in your file. Destina and Roana aren't as necessary as Iseria is but if you're short on dependable Soul Weavers for PVP they're great choices. ... I didn't mean to only list Green units, haha.
• You should complete Tamarinne's friendship connection quests as soon as you could as well as Angelica and Furious'. I would also focus on Lorina if you haven't summoned her in the Moonlight Summon because her speciality change is very good but very grindy to get to.
• For my Chapter 3 selective summon I chose a set with Choux but Mort is widely reguarded as the best 5* hero pick. Senya needs her artifact to compete in the current PVP meta but she's a good choice too as well as Politis.
• DO MONTMORANCY'S SPECIALITY CHANGE AS SOON AS POSSIBLE. Ras' too but that happens at the end of Chapter Two so you'll have to wait a while. Lorina is also a worthwhile character to focus on as well.
• I don't spend money on this game but I did buy both of the monthly packs in the past.
• Take a break if you're burnt out on the game. Gacha games can get boring and repetative really quickly for me but Epic Seven has kept my hooked with the amount of PVE content. I would let your guild know first if you're planning to not play for a while though. Sometimes I just check in to participate in guild wars and get the free summon.

Upcoming Units to Add

Since the 'summoned' page got a bit long with the images attached I'll place the list of units I have BUT haven't built yet here. Not all of the characters I have but just the ones that I want to build ASAP. The ones in bold are top priority!

• Archdemon's Shadow
• Argent Waves Hwayoung
• Aria
• Belian
• Conqueror Lilias
• Designer Lilibet
• Destina
• Diene
• Dragon Bride Senya
• Dragon King Sharun
• Eda
• Eligos
• Elvira
• Genesis Ras
• Harsetti
• Maid Chloe
• Navy Captain Landy
• Ocean Breeze Luluca
• Ruele of Light
• Setsuka
• Spirit Eye Celine
• Twisted Eidolon Kayron
• Veronica