@marianne-van-es good point, but instead of maze coins could it of been the 15 monster cells that showed?

Well i didnt even notice what event was on. I never do them. although i will be doing gorg.

Barbael/ingenica all speed(make sure they are faster than jasastur) to trait disable before possession, with elvira as third can be effective.
Jasastur, an anticipation monster and a teamspeed curser(learnan etc).
Gakora and gelotron also works, teamspeed on gakora, life/teamspeed 2/3xstrength on gelo.
If you have 2 tenacity shields that would help too

Which league are you in? What other monsters do you have? What runes do you have?

@grnxnham i honestly couldn't tell you if they appear as 2 out of the same chest, but @MandyMcCee reported the same thing in our team chat so is definitely worth investigating.

I personally like these changes. 5 attacks 5 defences means you get to field the best teams you can without out having to worry about swapping runes from gold to something useful for 100+ monsters that meet the requirements and then have to swap them all back again once it ends.
As for the 2 weeks i think the logic behind that is it is less 'effort' with these changes so a higher frequency should compensate that. I am also unsure about the 2 weeks but i see why and i am willing to try it.
These changes make it more tactical and will make players think about who they use a valuable attack on, much better than the current who has the most monsters wins.
The rewards weren't great for the current format considering the amount of effort required(post talany/diamond relic chest) but if it ends up being a fun event and the rewards are reasonable then i dont see a problem with these changes.
As for seeing who is doing what, cant you just ask players to call out their attacks? And if someone deviates from the attack plan take a SS of the individual contributions and see whos points go up.
2 month restriction lock may be a bit long but on the brightside it means i can leave my runes on a monster and not have to pay 75 gems per monster every 2 weeks.
You can always look at the enemy team and see what kind of monsters they have that will give you an idea of what you will be facing.
That is how we won the last battlegrounds, our opponents had a lot of sherezar/xiron/ragnarok so we avoided the battleground that had spirits/magic (allowing combination of sherezar/xiron, sherezar/ragnarok, ragnarok/xiron etc on our way to the end base.

@grnxnham is it possible that you got duplicate relics? If you get duplicates they stack on top of each other. I think it normally says 1 widow armour. But if you get 2 widows armour they dont appear separately they appear as 2 widows armour. Same with runes. Lvl 3 strength x1/ level 3 strength x2. Gives the appearance of less but actually getting the right amount

@rdt925 level 100 only give 100MP
When you start to rank monsters then the MP they give increases as you can see here.

It is a trial for a new monsterwood event. Accounts that have it seem to be randomly chosen.
My partner has it but i don't.
Good luck getting the 1000gems!