Ikoria: Lair of Behemoths

Mythos of Snapdax | Sorcery | | Each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest. If {B}{R} was spent to cast this spell, you choose the permanents for each player instead. | Seb McKinnon

Mythos of Illuna | Sorcery | | Create a token that's a copy of target permanent. If {R}{G} was spent to cast this spell, instead create a token that's a copy of that permanent, except the token has "When this permanent enters the battlefield, if it's a creature, it fights up to one target creature you don't control." | Seb McKinnon

Blazing Volley | Sorcery | | Blazing Volley deals 1 damage to each creature your opponents control. | Heonhwa Choe

Cathartic Reunion | Sorcery | | As an additional cost to cast this spell, discard two cards. Draw three cards. | Jakub Kasper

Forbidden Friendship | Sorcery | | Create a 1/1 red Dinosaur creature token with haste and a 1/1 white Human Soldier creature token. | Jakub Kasper

Go for Blood | Sorcery | | Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) Cycling {1} ({1}, Discard this card: Draw a card.) | Chris Rallis

Mythos of Vadrok | Sorcery | | Mythos of Vadrok deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers. If {W}{U} was spent to cast this spell, until your next turn, those permanents can't attack or block and their activated abilities can't be activated. | Seb McKinnon

Rumbling Rockslide | Sorcery | | Rumbling Rockslide deals damage to target creature equal to the number of lands you control. | Adam Paquette

Tentative Connection | Sorcery | | This spell costs {3} less to cast if you control a creature with menace. Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. | Kieran Yanner

Inspired Ultimatum | Sorcery | | Target player gains 5 life, Inspired Ultimatum deals 5 damage to any target, then you draw five cards. | Tyler Jacobson

Ruinous Ultimatum | Sorcery | | Destroy all nonland permanents your opponents control. | Chase Stone

Genesis Ultimatum | Sorcery | | Look at the top five cards of your library. Put any number of permanent cards from among them onto the battlefield and the rest into your hand. Exile Genesis Ultimatum. | Jason Rainville