Beyond just being fun, Sire of Seven Deaths is also incredibly powerful, packing a serious punch even when removed
The only reason she isn't lower is because she only costs 2 ink to play
The Ruby/Steel single-player deck wins by challenging to gain lore, and trying to stop your early game
Im not and nor have I ever been an MTG judge, but Ill use my love and knowledge of the game to best interpret the rules
The deck starts by playing a number of efficiently costed vampires with strong secondary abilities including drain (Astarion, Defiant Bloodlord, Sanctum Seaker), mass reanimate (Bringer), card draw (Champion of Dusk, Crossway Troublemakers, Dusk Legion Duelist), granting your army lifelink/deathtouch (Crossway Troublemakers), +1/+1 counters (Drana), anthem effects (Edgar), creature tokens (Mavren, Preacher, Sanguine Evangelist), Explore (Amalia), removal (Vona), and many many more
Are the MTG Arena Starter Decks too weak, and you're looking for a higher power level deck