I think he meant Easy CR.

Read from this source

Castle Rush (Normal Mode) Team Lists:
Optimal formation: 1-4 Defensive

Rudy Day:
Shane/Jupy (Back)-Rachel-Joker/Rudy-Lina-Sieg
Eileene Day:
Shane/Jupy (Back)-Rachel-May-Lina-Victoria
Rachel Day:
Shane/Jupy (Back)-Rachel-May-Lina-Eileene
Dellons Day:
Shane/Jupy (Back)-Rachel-May-Lina-Yui
Jave Day:
Shane/Jupy (Back)-Rachel-May-Lina-Eileene
Spike Day:
Shane/Jupy (Back)-Rachel-May-Lina-Rania
Kris Day:
Shane/Jupy (Back)-Rachel-May-Lina-Leo

For me, I feed to 2*/3* Element.
If you are really short of gold, then only sell them off.

You can check whether its Easy or Normal above your CR current Ranking. For example, Immortal Castle (Normal).
The difficulty is set by Guild Master and it applies to all members.

Most of the time, I farm at 7-9. Extremely safe for fodder leveling provided you can one shot every wave.
If I have too many Happy and no other monster, then I will proceed to 2-10.
Backline: Rei
Frontline: Ace + 3 fodders

For jewel, I also auto farm 9-1 previously. May proceed to 9-6 if I'm gonna auto farm for jewel again.
Backline: Rei
Frontline: Ace, Dellons, Alice, Eileene

My heroes are mostly using the 6* weapon/armor dropped in hard map.
Occasionally, I will rank up the 5* items to 6*. Got a few 7K weapons from there.
Just do more farming.

Well, depends on your current team.
I think boss stage might have better chance.

Tomorrow maintenance will unlock Hard mode Daily Dungeon liao. Too bad you have to wait till next week for another 4* Water element.

I think that's the 4th level Daily dungeon where players can get 4* Element + Awakening Crystal.
We are going to get the 3rd level Daily Dungeon only.

Haha. Someone finally mentioned Mao Song's stun. Yes, the proc rate quite good but cooldown is 120s.

Just tried the Hard mode dungeon.
Team: Shane, Alice, Ace, Nia and Sylvia.

I don't have Rachel so have to bring Sylvia to reduce enemy damage.
Died after killing Wukong and he revived with 4 clones.
Continued with 30 rubies and immediately use Nia to kill the clones.
Shane is the last hero standing. Good thing Wukong piercing skill is still on cooldown.

Only one Wukong. I was referring to my own Shane.

Taken from 7K Global Reddit. Source

Guide: Friday(Fire) Daily Dungeon (Hard Mode)

Encounters:
Level 70 4* Mao Song, 4* Soi, 4* LingLing.
Level 80 5* Mao Song, 5* Soi, 5* LingLing.
Level 90 6* Mao Song, 6* Soi, 6* LingLing.

Passives you will need: Spike/Sieg/Karon (For Mao Song's Stun)
Recommended Backliner: Feng Yan (Magical Team)/Ruri(Physical Team)
Recommended Supporting Units:
Dellons. For his silence. Works on DD I believe.
Ace, defense down.
Eileene/Daisy: Physical/Magical attack up.
Soi, for her 3-target AoE and 5-target AoE damage immunity passive.

Video of a 40 Feng Yan solo-ing the fire dungeon with the help of passives from other units. (Korea server)

Are you referring to the no. of turns ?
This is a video from Korea server which is quite old. Probably they didn't have no. of turns back then.

I think the buff reset when proceed to next round as long as it didn't expire.

Haha. I will make a new thread today hopefully.