Stasis and Delayed are not the same thing
The effect caused by Sundial and the effect caused by Procrastination are not the same thing. Hence this card would not work on delayed creatures.
Kind of a strange card when looking at the elements, as neither Gravity nor Time have reliable healing (aside from Amber Nymph), thus making stall not as optimal. And at the same time, if you were to use it in a Domination deck, Sundial hurts the strategy. I suppose it would see some nice use from rainbow stalls, and potentially even OTK's which can use Sundial to stall anyway.