These are just static effects that are either on or off, and don't use the stack
While not the best at what it does in most situations, it's far from a bad card to include in your deck
These are referred to as positive anchor (image of same class) and negative anchor (image of different class)
With a big of clever Izzet building, you could simply cast every spell off the top of your deck, build up a massive storm count, and Grapeshot your opponents to death
AI sharpening tools essentially render content at a lower resolution but use multiple techniques backed by deep learning to rebuild the image at a higher 'native' resolution, allowing for significant performance gains in tow
Even if you don't buy any of the specific boxes listed here, the criteria I discussed can help you make an informed decision