This is a small list of people in the subreddit community who have defeated Karl and made a helpful post:

• /u/judhap
• /u/squidlegss
• /u/ILiveforLomo
• /u/not_that_observant
• /u/tims20

/u/judhap

Hi guys, I'm 34 days old and I just beat Karl

http://imgur.com/Tja0Cm6

http://imgur.com/3oTfWZG

http://imgur.com/fvvXnCR

http://imgur.com/eA4GLOf

took me 3 tries to get him, and now I'm going to list some tips and mistakes and hope that you guys will learn something from them

• Blue execution is at KARL'S 2ND FORM and when he reaches 50% , not when he reaches 50% at first form

• Tree is a catalyst for beating karl. Just beware of karl paralyzing him

• 2 healers are essential, I beat him with 1 squad like that

• you won't believe this but Rashil survived blue execution without any buff on him. My tree was paralyzed, behemoth and serins guard and rashil hit karl. Everyone survived except tree, which I used my revive on and fujin pot rashil to double heal everyone to max hp

credits to this subreddit. you guys help a lot and I will try to pay everything back

credits to ushi for the serin team, but i didn't blatantly copy him

credits to /u/BFLMP for the behemoth analysis. didn't really say that behemoth is good for karl but still made me lvl up my 4* behemoth to 6* sbb in 1 day

and also a good soul, /u/becktheham . I asked him to equip an anti paralysis sphere to his tree(which made me not bring stimulant and revive instead) and he actually did :')

proof : http://imgur.com/01bLVIE

Credits/Direct link to thread

/u/squidlegss

So my heart is absolutely racing right now. Just beat Karl after what's probably my 6th attempt. Here's my squad

66 Twins (L) (Leader) (Cordelicite)

68 Loch (A) Havoc Axe

51 Amy (G) Charge Stone

78 Elimo (B) Flesh Armor

40 May (G) Flesh Armor

All units are 5* except May, obviously. For items, I used 10 Cure, 7 High Cure, 3 Divine Light, 5 Thunder Seals, 2 Fujin Potions.

Edit: Used 6 star Eze maxed with Sacred Jewel as friend.

EditEdit: I didn't think I would be able to do it with just the first squad, so I didn't take a screenshot of the squad screen. But, I have this: http://imgur.com/Uv0t5Db

Credits/Direct link to thread

/u/IliveforLomo

SQUADS:

You need three squads for this boss (Generally) First squad is a rainbow squad of 4 or 5* units that can kill Karl's first form and do at least a little damage to the second form.

The second squad should be your mono thunder team consisting of 5* thunder units (can use Royal Dancer May as healer if wanted).

Finally the third squad should be units that do strong single target damage with Damage spheres such as Muramasa or whatever your preference is for last resort damage to kill Karl (Or whatever units you have just choose ones that do the most dps)

You need a strategy to beat Karl. And here are his move sets and when he will use each move dependent on his current Hp at the end of your turn! Guard when necessary:

First Form of Karl:

• 100-75% HP Aoe water elemental attack every 5 turns.

• 75% HP.3 turn attack and ignore defense buff.

• 50% HP Recovers 100% HP and transforms and does Aoe or random 4 attack

Other moves used whilst in first form include: Single-target earth elemental attack that inflicts weakness and Single target thunder elemental attack that inflicts paralysis.

SECOND FORM:

• 100% HP Single-target earth elemental attack that inflicts weakness. Single-target thunder elemental attack that inflicts paralysis

• 75% HP Single-target light elemental attack.

• 50% HP Powerful Aoe water elemental attack (Blue Execution) Aoe water elemental attack at random intervals.

• 25% HP 3 turn defense buff and leeches hp with every attack

GENERAL TIPS:

If you play around his attacks and guard against his strongest moves, paired with a good item setup it's not all that hard to beat him!

Example decent item set: High cures, Stimulants, Thunder seals, Divine lights, and Fujin potions

• If you have an Alpha tree altri or world tree altro friend, you can use them and not have to use stimulants and replace said stimulants with more cures or whatever you prefer :⁾

• Use the Fujin potions for healers to get full bb for clutch heals to your teams

• Don't bother with ores because you should be getting your damage from your friend i.e. (Holy thunder eze) and you need stimulants for his paralysis!

• At maximum try to use very few items on his first form (which is pretty weak so you shouldn't)

• Estimate his hp and where it's at approximately so you can guard and not get insta-gibbed by some of his moves.

• Enjoy your Karl!

EDIT: I will add in screenshots of the units that I used to beat him once the servers are back up!

EDIT: Format changes

Credits/Direct link to thread

/u/not_that_observant

Proof

I used two squads:

Squad 1 - Mono Lightning - Twins Friend
Squad 2 - Mono Earth - 6* Lance Friend

I took Cure, High Cure, Divine Light, Earth Seal, and Thunder Seal with me. I used every single one.

I couldn't make a decent squad 3 because I didn't have enought Cost left over. Luckily it didn't come to that.

Both squads were running with one 6* leader and the Twins, so I had 50% ATK boost, 10% HP, and no status ailments.

The first squad got him to the Blue Execution moment, and were annihilated. I used about half the heals to get there. The first form was no problem, but his second form required some cures, especially since it was taking FOREVER to charge up Elimo's BB. Evil Shard would make this much easier.

The second squad killed him. At the end, I would come REALLY close to losing a unit before Tree's BB would fill up (need an Evil Shard). I would then put that unit on Guard and hope for the best. Luckily Lance's SBB charged up near the end and gave me a much needed DEF boost.

The transition from Karl's first to second form is pretty drastic interms of the damage he dishes out, but I didn't think he gets THAT much harder as you whittle down his second form. The buffs he gets at 10% or wherever weren't game changers.

I tried to take out Karl earlier in the week with weaker versions of these exact squads. The Lightning team didn't make it to Blue Execution so it was up to the Earth team. 2 of the Earth units who weren't guarding died during the Execution, so I figured out pretty fast the first team would need to get me there.

Key Points

• Plan to lose a squad at the Blue Execution moment
• The Twins are very helpful
• Use Evil Shards on healers if you can
• Use Defensive Seals
• Guard with attackers if their HP is low and healer's BB is a few turns away. It'll save you cures.

Credits/Direct link to thread

/u/tims20

Proof

This is the team I used in order:

Team 1:

• Leader: 5* Behemoth Breaker LV. 75 BBLV. 1
• Sefia 5* Breaker Max LV. BBLV. 7
• Kikuri 5* Guardian Max LV. BBLV. 7
• Elimo 5* Anima LV. 58 BBLV. 2
• Elimo 4* Lord LV. 48 BBLV. 1
• Friend: II & Mina Max LV

Team 2:

• Leader: II & Mina Breaker LV. 80 BBLV. 4
• Holy Thunder Eze Breaker LV. 100 BBLV. 10 SBBLV. 10
• Zeus Bow Loch Breaker LV. 62 BBLV. 1
• Reeze 4* Breaker LV. 53 BBLV. 1
• Reeze 4* Breaker LV. 52 BBLV. 1
• Friend: Holy Thunder Eze Max Lvl with Medula Gem

Team 3:

• Leader: Goddess Emilia Anima LV. 55 BBLV. 1
• Drake Born Lodin 4* Breaker LV. 40 BBLV. 1
• World Tree Altro 4* Guardian LV. 41 BBLV. 1
• Loch Ness 4* Lord LV. 56 BBLV. 4
• I Think I brought in Douglass 5* or Dilma 4*
• Friend: Holy Thunder Eze

Items: Potion 10x High Potion 7x Divine Light 2x (i forgot to make another one) Revive 1x Thunder Seal 5x.

My plan was to try to take Karl to 50% of the evolve form with my first team, but I only got him 80% of the evolve form with the second team before he killed them off, I used about 2 potions, and saved the rest for my second team, which is the team I was planning on beating him with.

• Tip: Guard every 5 turns. don't forget, he doesnt do that much damage but everything counts.

• Guarded with my healers every turn except for when I need to heal. at about 50 percent, I sacrificed II & Mina my guarding everyone as he got to 50% since He uses Blue execution which is deadly.

• I got him to 25% then he started healing.

• Got him down to about 15-20% when he killed the main people in my team, I ended up using the revive on My holy thunder eze which wasnt such a great idea, but I was able to buy some time.

And I kept forgetting to use my Seals, so dont forget to reapply seals every 3 turns. I though I was about to lose so I just started attacking with my 3rd team, without realizing It i had my leader and friend leader using 50% attack boost each, so I was doing a fair amount of damage with my thunder units, Lucky enough he did not paralyze anyone. I honestly wasn't expecting to beat him after my 2nd team died, but I was able to pull it off on my 5th karl run. I am currently LV. 82

Credits/Direct link to thread

If you have defeated Karl and wish to contribute please SS it and write in the comments below! Thank you!