Unlike Aristocrats, which are built around sacrificing low-cost creatures, Sacrifice decks are built around sacrificing all kinds of permanents, including forcing your opponents to sacrifice as well
As you can see from the image above, if Cloud is equipped he gains double-strike and indestructible, which is obviously extremely powerful
Suppose you play against a deck like Daretti, Scrap Savant that can assemble combos like: cheat Darksteel Forge and Mycosynth Lattice into play, and follow that up with mass artifact destruction
Now from my personal experience with the previous digital rendition of Magic The Gathering (MTG Online) I can say that the MTG community leaves a lot to be desired, like most online communities
Its Energy Cone allows the player to put a 2/2 Zombie token into play whenever an attacking creature of their own or a blocking creature controlled by their opponent dies
It was Master Zarek, firing lightning bolts from hands white-hot with electricity at the blue metallic attackers, often taking out two or three at a time