Hello to everyone. I decide to share my ideas. Maybe they were at this forums, so don't blame me.

In first i suggest chameleon armor set. That would be originally viruslisk armor set, but knight can be 50% transparent. And so in further distances from monsters they can't see knight. That armor set should be in chameleon(or something) prize box and appears only in apoointed time.

Secondary i suggest option to colorize your armor. That is you see nice armor and you like it a lot, except color. Or your knight's color doesn't fit for that armor. So you buy armor and go to color crafting machine and use energy and crowns(or just tokens) to change color.

The third my idea is the another expansion pack.
There appears hybrid of jelly/lincher with gremlin. And you must complete levels to face Jemlin Mutant! He is immune to elemental and pierce, but vulnerable to shadow damage. His attacks should be similar to giga lincher(thorns, spikes) and adds few more, e.g. chage his arm to hammer and spin around. Of course he can heals himself, but only between the phases.

And finally i suggest what is beyond of the end of the game. But not so beyond.
There must be event in year, when core itself opens up. There appears small shadow/swarm monster and you must chase it and catch. When you find it and deal much damage, some gremlin mechanism return monster to the core.

Thats all. For now. I dont think that would be realized, but i think that should be.