I am enjoying the addition of the new rune tiles up to now. Anything new is refreshing. But I have one concern and one suggestion.
My concern is about the immobility of the rune tiles on higher level of difficulty stages or at the final boss fight (equivalent to the Ursena fight where she turned into a mini Titan). At that point, every move counts. Having a quarter of a board blocked by immovable runes will cause trouble.
And finally my suggestion is that when you break two or more rune tiles of the same colour at once, their effect should stack, so it doesn’t get wasted. More poison, more burn, more heal, more mana speed, more defense decrease.
What do you think?