A head emerges from the stonework. You can see blonde hair and something red and sparkly. Just before Donjonetta drops down with her death-splat flop, you see bright red lips parting and a tongue beginning to flicker. There is no noubt in your mind, there is no hesitation in your limbs and your synaptic linkages are crackling as you shove a stone rat hard and fast into the mouth of the Necromancer.
This calls for a L1 SR on DEX and a L1 SR on SPD. It is a precise attack and one you need to execute accurately before the boot is on the other foot.