The silver and gold knights have a fixed attack pattern. They do this once:

08, rest

Then this three times:

16, stab up 16, stab down far

Then this twice:

16, stab up 20, stab down far 24, stab down near

Then this three times again:

16, stab up 16, stab down far

Then this twice:

16, stab down far 24, stab down near

Finally this twice:

40, rest

Then they start over from 08, rest. The difference between them is that the silver knight stays in place and the gold knight moves. It does not seem to be possible to interrupt the loop. If Kuros is too close to the knight, however, each state in the loop only lasts for 2 frames instead of 8, 16, 20, etc. frames. Getting close enough seems to require taking damage beforehand.

I think I just found a way to the bad Wizard 3 jump consistently! My problem was that the amount of speed or distance from my jump would vary and I'd fall.

What I found was the extra platforms on the bottom seem to be introducing some lag. If the three at the bottom (See image below) disappear, the jumping physics become much more manageable!

So the trick seems to be just waiting on platform 4 and jumping as soon as there's only 2 platforms on the screen