Not Really. Spell Pierce is the natural substitute for Pact of Negation in the matches that, the latter, is not good. I side Spell Pierces against:

-Counterbalance decks
-Decks that may play Torn of amethyst/Chalice of the void/trinisphere, I mean non-creature permanent hate cards.
-Decks that pack hand disruption.

In none of those situations dipel is even useful

The deck works fine against dekcs with counterspells, so dispel is most of times a win more card, only being very relevant in mirror matchs (which are not that usual...).

I may also side them against really slow decks with Coutnermagic, such as Landstill, since iin those matches Retraced image are not that good, in fact they may be very irrelevant, so adding pierces may help while starting the combo or even protecting from an early Jace (though is not such a problem in normal situations...).

Greetings,

Iņaki.-