[Chaos]

actualy, wrong,
different spells do refund 1M if used in succession

Then it should be changed. I see no reason why you should be able to cast four spells just because you threw them all on the same weakness of the same target.

As for the sword:

1. If it's going to be a build-up, I wouldn't lower the cap below what the sword currently inflicts. A 12 Momentum requirement, alongside four hit checks (that require melee range), is a bigger investment than Intensify Cold.

2. Alternatively, with the current system, changing the effect trigger to 'On Critical' will make the effect harder to get off, and demand a much less lenient stat spread.