Master of Cruelties must attack alone, unless you skip the declare attackers step and just put it directly into play tapped and attacking with Aleshas ability
Same caveat applies that this is probably much better if the formats slow, which makes it a more appealing Sealed card
Here's my common opponent decks: A Tergrid, God of Fright Flip control deck
Creatures (23) 4 Goblin Vandal 4 Ball Lightning 4 Ironclaw Orcs 3 Goblin Digging Team 2 Dwarven Soldier 2 Viashino Sandstalker 4 Lava Hounds Lands (22) Spells (15) Sideboard This was the moment the red decks dropped the act
Eventually, you'll run out, but the enchantment Abundance can combo with Cultivator Colossus to make sure that you'll clear all the lands out of your deck
On its face, Yawgmoth is an insane amount of value, with a manaless ability to draw cards and protection from the most common creature types in the game