#seeing these two trash cards from mirrodin block makes me wonder if there's a whole cycle of these

[dravidious]

#creative block is also cool #finally a power crept Override

Oh I've never heard of that card, let me see-

You're more amazing than a 1/1000 chance

Blue commons, and another rare I had an idea for

Blue and black together cover all 4 modification themes in the set, so a card that rewards you for using all the different themes is obvious! Unfortunately, treating +1/+1 counters and keyword counters as different kinds of modifications would be confusing, difficult to word, and wouldn't even match the usual reminder text for modified, so you don't technically need to use all 4 themes. But still, this is some great untapped design space, perfect for rare!