Berkut

Game press is broke, but his B is Lull Atk/Def 3, and the Seal is QR. With his refined signature Spear, Berkut gets an essential +8 to Atk/Def/Res, and with his B slot, that goes up to +11, giving him a monstrous 61 attack, a titanic 42 defense, and a respectable 35 resistance, not to mention Berkut has access to cavalry buffs as well. This allows for a potent cavalry tank, as a single ward cavalry pumps his defenses up to 46/39, so distant counter is taken to allow Berkut to beat mages and bow users. Sol provides sustain, and allows Berkut to finish his opponents with that crucial follow up attack.

(It is suppose to be lull atk/def 3, but that does not exist on this website)
He tanks alot if you have him highly merged, and he has really nice mixed bulk. With the -6 atk/def from double lull he becomes even more of a threat and a better tank, i would reccomend this build to anyone.

Hello hello~! Mia here-

Today I bring you my personal build for berkut, I will note his stats in my explanation as +10, 5df, and married (S-rank SS)~

As everyone knows, the Rigelian prince had been screwed over by FEH as a good amount of strong, beloved characters did and ended up as garbage. Yet, to those wanting to bring out the true monstrosity he deserved to be I bring you this build.

As you can notice, this build definitely doesn't focus on his offensive stat, instead it breaks it down with the fortress skills but still leaves offensive capabilities. With Berkut's Lance(+def), Fort. Def/Res 3 and Fortress Res 3 it should leave you with an incredible bulk of 59HP/49DEF/49RES when getting attacked. Which to me, sounds good. I built him to be a cavalry tank, easy to move across the battlefield to whereever he is needed.
I chose Aether to further make him be able to handle more. Because of his terrible speed which is 29 at that point, he'll get doubled alot, so Aether should charge fairly quickly and bring him back to glory again in time of need. I chose Panic Smoke 3 to increase his capabilities when surrounded. Any opponent that dares come buffed would soon have their gained strength get taken away. Dull Ranged 3 was a reasonable choice for a B skill, neutralizing the threat of bladetomes for the most part.

I know this build practically works on everyone, and maybe even better on them, but I still wanted to show this off, because Berkut is a villain very precious to me.

Have a good day/night/whatever~ Mia out~

Ok, This is the build i am personally using for my Berkut and from my expirience it is great.

At +8 merges and four flowers with this build he reaches 54HP, 48 Atk, 25 Spd , 42 Def and 43 res,
if u ad eir support during light season this goes up to 59 hp and 48 res.

Know i know you will say "oh what is this buil he can't even counter attack". And to that i say to shut your mouth and listen, you use this build as a straight up mixed tank for AR-O during light season that nullifies foes buffs and debuffs their attack for a easier time taking them out

This works well because his mixed bulk lets him take samll to no damage from some units and also nullifie their buffs

I really recomend this build and hope you have a great time using it

*note*
Can use any smoke (even panic or pulse) with the same efficency and if you want to be more budget you can swap fort. DEF/RES for Fortress res

Take care!

Build Name: Prideful Douchebag {Lv.40+10}

This build makes the best out his, mediocre at best, stats. This is one of the only builds that I can come up with that allows Berkut to actually win on his own.
His lance creates a nice little way of tanking magic users, distant counter allows him to attack both close and ranged magic people, panic+his HP creates reverse bonus effects upon enemies, and fierce stance boosts his chance of actually killing someone when attacked.