The results tables on the assorted cards that require rolling d20s have a bit of a range regarding how exciting they are, but ultimately it will be easy to avoid playing with or against these cards if you dont like rolling dice
The reason that Damnation is so good (plus a bit pricey!), and takes the top spot on the MTG black board wipes rankings is because this is an extremely cheap, no downsides effect for black
It's associated with some of old-school Magic: The Gathering 's most iconic heroes like Urza and Gerard Capashen
Yawgmoth's Will lets you cast cards from your graveyard that turn, with the catch that anything heading back to the graveyard is exiled instead, but in fast formats that downside barely matters
#20 I want to get much more blocking than the average cube - which isn't too hard really
Since a lot if not all the animation depends on Bello that we know of, protecting them should be a top priority