I haven’t looked particularly close yet but the yellows seem strange on Electabuzz and probably some of the other Lighting based cards (that same green tinge you see on the Spray). I wouldn’t really call them error cards though. Color inconsistencies just sound too troublesome deem an error. When I have time to go through my bulk cards I’ll look a little closer for printing variants.
I have some of the Holo bleed cards, they are kind of neat I think. Some are much more apparent than others so there seems to be varying degrees on this one.
I did notice that a number of the full art cards you could see the textured stamping from the face of the card on the backside. This often resulted in slightly rolled edges on the card as they seemed to have been stamped extra hard. Again, more inconsistencies, not what I’d consider an error. But worth mentioning I suppose.
I’ve seen a couple with white ink on top of the cards. Not tiny dots like usually, but covering a huge part. Here is the most extreme example:
Not sure how common they are though. The three you’ve mentioned have multiple occurrences so far (I’ve seen two Pikachus - and have one of them incoming; heard mention of the Evolution Spray a couple of times; and the Full Holos are all over eBay).
I’ve also seen pictures of a red tint and some lines on the entire card. I believe I saw it in a thread here on the forum, but I’m unable to find it…