Originally Posted by
TsumiBand
It's probably worth noting that the kind of RNG in Davriel at least is super easy to mitigate. "Return a random creature with the highest mana value" is dead simple to fix and if you were playing that card as a Spike then you already know how you'd attempt to maximize your returns. Returning two random creatures to your hand is first of all already an effect in the game on like two jank Innistrad green cards, so that's not even a new effect, the perpetual buff is definitely digital-only though.
If any of these effects revealed thus far are going to lead to the most pissing and moaning, it's going to be Tome of the Infinite. Only two things can happen off a card like this; the Tome player wins thanks to the effects they get and the opponent feels bad, or the Tome player gets a handful of junk that does nothing and they feel bad. Like, you're going to see games where the Tome player draws multiple Lightning Bolts and wins the game by going face, or because they staved off lethal thanks to drawing a Fog and turned the game around, and the opponent will say "I couldn't have played around that, fuck that card and fuck this game" and they'll be totally right.