Only creatures with black in their casting cost or that are otherwise stated as being black, like creatures affected by Rise From the Grave, and creatures that have the artifact supertype can block a creature with fear
The gold Ultra Ball blends practical value with collectible appeal
This card acts too as a cute way of protecting your LP but it isn't exactly reliable, since it depends on a coin toss ( but it does make a lot of funny burn wins) Dark Spirit's Mastery x3 This card is arguably the best card of this archetype: Acts as extra copies of Loading
It has protection from White and Black, gets a +1/+1 counter on it whenever you cast a creature, and makes creature spells you cast one mana cheaper for each +1/+1 counter on it
The Generation banlists also exist that filter by generation (DM, GX, 5Ds, Zexal, Arc-V)
You can only use each effect of "Solfachord Harmonia" once per turn