Not TOO many. Only prism, mommaship and illusions.
Prism is crap overall, the units design doesn't fit into protoss gameplay atm at all.
Mothership needs a serious buff to make it usable.
Illusions are cool, but with all sentry energy required for forcefields, it seems like a waste. If forcefields will get a nerf, I'll be looking into using illusions more.
Carriers are actually good in pvz, I've been using them for a week or so and never got disappointed.
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