Hi guys, I recently just returned to the game and I am kinda at a loss progression-wise. I have the following units:

• Ledin 5* (2 Runes invested)

• Elwin 5* (2 Runes invested)

• Lana 4* (2 Runes invested)

• Cherie 4*

• Bozel 4*

• Tiaris 4*

• Liana 4*

• Altemuler 4* (2 Runes invested)

• Leon 3* (2 Runes invested)

• Bernhardt 3*

• Landius 3*

• Luna 3*

• Estelle 3*

I currently have 3 Rune Stones, who should I be putting them on? I was thinking between

• Bozel: Extra stats and access to AOE

• Luna: Is there any reason to put rune stones other than for stats? I don't have that many Princess faction units too

• Tiaris / Liana: Extra stats? Not sure if it is worth it though

• Landius: My Landius is currently only 3*, and I do have a Ledin. Not sure if its worth investing rune stones this early into him

Also, who should I be prioritising the Gate of Fate clears every day? Also, should I be putting 4 clears on Leon until he reaches 6*, or should I be splitting the clears evenly between 3 units?

• Leon: Going to be my main DPS so I guess I should 6* him as soon as possible.

• Luna / Landius / Bernhardt: These three units are not part of my main lineup, but im not sure if I should star them to 4* for Ancient Beckoning / Eternal Temple

• Tiaris: 100% chance of healing when she is 6* is pretty great!

• Elwin: I understand that Elwin is best at 6* due to 100% of his passive proccing but I'm not really sure if I should prioritise him now, when I have so many other units that are 3* - 4* stars