Any tipps for Water Garden?

All-breaker Hector tanks Clarisse and Legion. Hector and Fjorm clean them up with P!Azura support. Cordelia KOs Katarina. Fjorm duels Athena while standing at a defense tile with P!Azura supporting.

I did it with michalis, Reinhardt, azura and ryoma, but didn't need to use ryoma. I waited one turn after I moved my units in a good position. After the enemy made his turn i killed clarisse with rein and legion with michalis. Then azura sang for rein and he killed katharina. Then I waited a turn to kill Athena with rein and won.

I did it with zelgius, raven, olivia and tailtiu.

Zelgius tank legion and clarisse. Tailtiu finish clarisse and zelgius finish legion. Raven destroy katarina and tailtiu kill athena with the dance of olivia

Legendary Ike, Fjorm, Azura and Nino here.

Make use of the tree to provide some important cover if you need it. Find a way to take out Legion in the first round, before he can move on you. If wounded, then you’ll need either to reposition that unit to safety, or otherwise ensure they can survive the first enemy phase.

In my case, Nino hit twice on Legion using Azura’s song, then I repositioned her with Ike. Fjorm moves in to finish off Legion, becoming my front line defense for the coming enemy phase.

I cleared with Fjorm, Nino, Ayra and Sothe. Nino repositions Sothe forward so he can reach the "safe" square closest to the enemies along the bottom of the center area. Ayra goes directly across from Legion and moves one step forward, just out of range. Fjorm slides in by her.

Once all of the enemies move forward, Sothe chips Legion and debuffs the group of enemies while buffing all allies. Nino finishes Legion, Ayra kills Clarisse and tanks the hit from Katarina. Fjorm moves in behind Ayra to assist with the final clean up next turn. Then it's a fairly simple matter at 4 on 2 to finish Athena and Katarina.

I cleared it with Raven, Soren, Mia, Fjorm. Fjorm had Def Ploy 3 and was able to kill Athena in one round. Raven kills Clarisse. Mia kills Legion in two rounds. Katarina is weakened by Soren over the mountain. Then lastly, Raven repositions Mia to kill Katarina.

Used Ayra, Brave Lyn, Fjorm, and Ninian.

Waited until enemy took its turn, with Fjorm in front of Ninian, then Ayra destroys Legion. Fjorm weakens Clarisse, then Lyn swaps with Ayra to get her out of the way. After that enemy phase, Fjorm softens up Clarisse so Lyn can finish her off. Lyn is danced out of the way. To ensure Fjorm's Bond skill activates, Ayra swaps with Ninian (who has TA) so that she is beside Fjorm. Then the cleanup begins after enemy phase.

I cleared it with Lucina, Nowi, Azura, and Tailtiu.
Azura had Hone Spd 3 and Hone Atk 1 seal to stand just below Legions range (cause she's the one I don't care get panic ployed). With Lucina and Tailtiu on either side of her and Nowi diagonal to Azura so all are out of range. Then LnD Lucina one rounded Legion with the Azura buffs and Attack+2 seal. Nowi then moves and attacks Clarisse. Then Azura dances for Lucina so she can move out of range, and SB/Aether/QR/DD seal Nowi handles both Clarisse and Katarina on enemy phase. And it was basically won from there, could have just plopped Nowi on the defense tile to finish Athena but instead decided to pick her off from the other side of the mountain with Tailtiu.

Ryoma, Fjorm, Axura, Linde
Take them all down, Linde KO’s Athena with help from axura. She tanks a hit from Katarina, Ryoma stand on lower Def tile. Linde tanks another hit from Katarina, Ryoma tanks legion. Linde KOs Katarina and Ryoma KO’s legion, then Linde finishes Clarisse w/ Desperation and Moonbow.

I used Ayra, Axura, PA Olivia and Fjorm
Ayra has the speed seal, Axura has drive spd and PA Olivia has hone atk
Fjorm is just there to give the extra speed to Ayra.
After turn 1 Ayra kills Legion, then with the help of the two dancers she then kills Clarisse and Katarina.
After another turn, she kills Athena (with Axura near her).

I used Ryoma,hana,f celica and with fjorm i baited katarina(killed her) and clair.
Next i baited legion with f celica she is +def -hp with close defence seal so he didnt really do damage.
I killed athena with fjorm's glacies (she has steady breath) and finished off clair with celica

You don’t need Fjorm on your team? Don’t need a legendary character to play these maps? I can play the all?

Fjorm, Bride Cordelia, Fallen Celica, Hinoka. I needed some position to make Clarisse head south on the first turn to Hinoka, second turn Celica with QR seal baited and took Legion. Hinoka and Fjorm move back up right side. 3rd turn, Celica and Cordelia take out Katarina, Fjorm repositions Hinoka to sit in front of Athena. Took a few goes and some seal juggling to get everything working right but separating the ranged attackers is important I feel.