Thanks for your suggestion. We are already thinking about what can be done here. 

I know that there are still many leagues that can not make lvl 100

Thats right ...a lot of the leagues didn't close it this tournament Tower League,  is enought to look at the rank list...easy for someone ...hard for someone else !

I've noticed that in the new Warrior Pass, there have been 7-star Geists added to the Top rewards. So Plarium has upped the 7-star Geists on rewards.

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I do think that the rewards need to be given a Re-Fresh in the Tower... a 3-star Purple Geist as a Top Reward for the last several YEARS has become stale to many players considering that Green, Blue, and Purple Champs have mostly become fodder as the Orange Champs are now what every player wants

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There should be 4-star, 5-star, 6-star, and 7-star Orange Geists for level completions + add a Divine Chest with the Holy Bond as rewards for finishing the Top Floor.

As for Updating the Tower, consider changing Floors 80 - 100  ( or ) raising the Tower 20 more Floors and require 8-star Champs (any 8-star Champ) to be used on these 20 Top Floors, this will incentivize players to make more 8-star Champs faster so that they can complete the Tower

Also, a Re-Fresh on what you get from the League Chests won in the Tower would help the Tower become more up-to-date on where Plarium has taken the game in terms of Sketches, Boosts, Resources, and Types of Troops needed.

It's been over 2 weeks and no reply from anyone on this suggestion for changes in the Champion Tower Event rewards.

Thanks for such detailed suggestions! We will pass them on to the team and see if we can implement them for future Champion Tower events.