Removal and Disruption Fatal Push, Snuff Out, Defile, Tragic Slip, Bitter Triumph, Infernal Grasp, Pile On, and Murder are cheap pieces of black targeted removal
For just one red mana, you can kill a tiny leader, deal the last 3 damage needed to take an opponent out of the game, or finish off a pesky planeswalker or battle sitting on board
There are a couple of great cards that slot perfectly into this deck
Anything currently phased out was ignored by all other effects, rules and interactions, but when it came back it would still be the same object it was before: no summoning sickness, no ETB triggers, all the same choices and modes and modifications still applied
Spirit Link (T1, S) Spirit Link has become a white staple at this point, appearing in every base set from the Fourth Edition set onward
Monstrous Rage I still think there's a strong chance that this is banned before the year is out