Previously, Rakdos decks relied on options like The Cruelty of Gix, Coiling Rebirth, or Push // Pull, which could be cast on turn five or six
#5 clearly the answer is to break singleton ok sorry more seriously a difficulty is making sure the intersection of black's weaknesses (unable to deal with artifacts, enchantments, and perhaps certain green creatures), still leads to interesting games for both players when those issues come into play
Magic the Gathering's Protect(ion) is a little more expansive in its coverage of the protectee: shielding it from all damage, allowing it to bypass any blockers, and completely untargetable from anything matching the description of what the protection...err, protects from
Flying.Whenever Hakka, Whispering Raven deals combat damage to a player, return it to its owners hand, then scry 2
Its loaded with interesting anecdotes regarding this aspect of MTG cards
In particular, Astellar of the White Forest is a real standout, with the cards value reflective of its potential potency
