Aggressive or tribal decks may run more, while control decks may run fewer and rely on spells or planeswalkers
Any time a card is banned in any format, a wildcard for each copy of that card's rarity would be provided to the player
The rest of this Secret Lairs contents are very solid as well, which is why I recommend the entire drop instead of buying singles post-release
Being able to maintain parity might be all you need and having a card that can keep you a bit safer early on and then go on to lock someone out of the game entirely is nice, it just requires fairly specific decks
The best part is that you can build a Psychic Spiral deck in 2 completely different ways (or let them overlap): Control with Psychic Spiral as a finisher With Psychic Spiral, you have a card that can finish the game without being vulnerable to creature/enchantment/artifact removal
Esper Sentinel from Modern Horizons II is a really solid way to keep drawing cards almost every turn