What should crowns be used for?

Promoting your vanilla Ikes, Ryomas, and other units with legendary versions into their legendary forms. Of course with other requirements.

(double post)

Hopefully something mild. I wouldn't mind being able to spend them on something, but I don't want it to be game-breaking.

Indicate the number of times someone has reached tier 21.

Anything else wouldn't be welcome.

I think they should be accessories, and for every 10 you get you get 100 feathers.

Crowns should just be a personal achievement reward. As stupid as this sounds, I don't think IS will make Crowns into a currency because it's only limited to those able to reach Tier 21. Currency should be available to everyone, even newer players and making this a limited/exclusive currency will only cause trouble among the players.

Honestly, I think Tier 21 is a big mistake. Sure it shows off how you fair against other Top Tier Players' AI controlled teams, but adding the extra Tier level was unnecessary.

The Arena System could be better than just using the Bonus Heroes to get the bonus points for using the unit, last hitting, and increase of stats. The two recent mechanics and rules for Arena was pretty bad. Last hits and stat increase only added an obstacle to Arena, if you don't like the rotation. It was fine with having the hero in the party, and possibly lowering your score by having an unbuilt and unsused hero, but the changes are pretty annoying.

granting access to hyper ultra abyssal arena mode

Crowns? What are you guys talking about?😕

Using to buy skills/heroes/banners.