For your first concern...that's true...but then again, an opponent can pretty much break anything
by dodging...but that's just the way it is. I'm loathe to let a mystic build chains at will though, if an opponent is going to dodge something that they don't like, then that's what will happen. The consecutive post thing could be rescinded, but some sort of limit should be put into place.
I also share the concern with the delayed action costs. However, I'm not going to let you just make non-delayed action seals delayed when put into a chain, because that would totally eliminate the need for this mechanic.
On the other hand, we could make it so that delayed action seals don't exist unless they're in a chain (the chain being what makes them delayed action). However, if that were to go forward, there's a couple things I'd like to add.
- You will never
be allowed to make more than one active chain as a result of a skill...outside of a medal. (That means that if you want to make one seal a delayed action, then use it as your only chain...but you'll have to wait until you set it off to make a new one.)
- We still need to figure out how long a chain can be. I'd like to see it based on something like the mage's stress system, where it grows as you grow. Or, maybe you can use a given seal only once in a chain.
- If this wasn't clear, you won't be able to place the final seal and activate the chain in the same post as these are considered two unique uses of a special.