block overhead
keep him fullscreen
a2a when they go for fullscreen leap or any leap that will go over you. Either way make sure to get as far away from the end of the leap as possible and try to interrupt it in the beginning.
But dont go for any stupid attempts at stopping brains leap, thats what they want, if you have to just take it and block overhead 7 times out of 10 youll block a dk and if not then the worst that can happen is you block a jump in into a low thatll do little to no damage