pokemon prismatic evolution booster box Terastal Festival ex [Japanese] and Flareon Buyer's Guide to Pokémon TCG

For the first category, cards like Experimental Synthesizer, Doomed Traveler, and Hangarback Walker are all useful candidates, though there are many more options

I was just the person in R&D that cared the most, so I took on the burden of making sure we weren't creating cards we weren't supposed to

They do so much that they may be something closer to removal bait than actual utility, but making your opponents use removal on something that isnt your commander can be useful, too

For the rest of you, welcome in

Sylvan Library is a Green two-mana enchantment that reads: At the beginning of your draw step, you may draw two additional cards

Now no one can attack