Dear devs:
The weapon restriction rule (any weapon must be brown) is fine, but it is made irrelevant by the fact that if you don’t use the new weapon, you don’t get the double score “bonus”.
And its not a “bonus” at all. You have doubled the amount of points needed to reach the rewards, meaning that completing the event is only possible if most of the guild spend 500 gems on the new weapon, AND use it throughout the event.
So, the double point “bonus” effectively cancels out the double points requirement you have imposed on this game mode. So, if we want to get the prizes, we must buy and use the new doomed weapon.
And, of course, it (Doomed Band) sucks. The idea of buffing the magic of all troops is nice, but its slow. And, of course, the weapon must be fully tempered to get the full benefit anyway. Not that it matters, because the effect is too slow to be useful anyway.
The Doomed Band is, of course, a clone of the previous weapon, the Doomed Promise. That’s fair enough, each “generation” of Doomed Weapons has featured a clone for each colour. However, that means the next 4 doomed weapons will be clones of this crappy weapon, and the new scoring “bonus” means we will be forced to use them. It really isn’t looking good for the future of Tower of Doom 
Until now, we could use any weapon and our guild completed the tower of doom event every time, but now, its much harder.
TBH, it is possibly because the tower of doom requires a new weapon with each iteration. The Hammer-type doomed weapons are incredibly good for ToD, the Doomed Sledge in this case. Being able to instantly cleanse the whole team when casting means that status ailments were very rarely a problem add to that splash damage and some mana generation, and the hammer type weapons are always going to be very hard to beat. However, we’re stuck with a useless weapon, which players are required to buy for 500 gems.
I get that you need to get players to spend money to keep the game going, and that forcing them to spend gems means some players will buy gems for cash. But, its a blatant cash grab, and worse, its hurting the game experience by making us use a crappy weapon. Failure to buy and use the weapon means players are letting down their guildmates, which is of course, the leverage you use to get people to spend.
Personally, I’m happy to spend 500 gems for the weapon. As a rule, I always buy tier 6 in weekly events anyway. But I resent being forced to use whatever crappy weapon you guys come up with each time.
The hero is the most important troop in the game, and the choice of weapons is the reason why. Putting this restriction on choice of weapon makes it a chore.
I get that you use the “double points” idea in the bounty event, but because that is a single player event, there’s no pressure for guildmates to spend gems. Also, carrying 1 bad troop on the team is a lot easier than carrying a bad weapon.
TLDR: forcing me to use a crappy weapon, and asking my guildmates to pay 500 gems to buy it is spoiling this event. Please can you ditch the whole double points thing. I’ve been playing this game for 7 years, and I have never said “I’m thinking of quitting” over whatever changes you have made during that time.
Until now, that is.