It is not a matter of "adapting to unexpected situations". How the fuck is Sakura meant to survive an attack from Gil, Karna etc.? You're putting him in a position where there is no satisfactory outcome.
Who said they would be the ones doing it?
Think like Zolgen, he not going to get the powerful entities that are hard to predict. He would recruit people like Fate, Forest, or even hell even trick Amelia to help. People he know their general actions and people that are not as difficult to track. He would also recruit Law if he learns his nature (which will probably happen cause he interested in him).
Really, think like Zolgen, he not stupid. Specialists and predicable elements are better then all powerful entities that defeat anything, cause there is no chance he can manipulate or predict them.
Even so, this RP is not meant to be solely about conflict. You are basically forcing Lantz into a fight that he does not want which can only end with characters dying, without any particular IC reason to do so (sure, you can justify it with "I saw what she did", but that is an IC justification for an OOC desire, not a natural IC response to something).
Yes, you are right that characters do have to adapt and adjust to the situation, but there is a limit to that. The RP is meant to be
fun, and you are attempting to force Lantz (and, incidentally, several others) into something they don't consider fun without giving them any option or any way to end it.
I think the point people are trying to make is, if Zolgen does notice that Sakura is around and that she can use Angra Mainyu's power so freely, it's odd to not expect him to seek allies to deal with her. Particularly given his backstory and knowing how out of his league he would be.
Yes, that is true, but there is no real IC reason why he should notice. Knick is just going out of his way to force a conflict that isn't desired by at least one party and which cannot reasonably be ended without deaths.