Blasphemous Act Commanders best red board wipe often costs just to cast, and it has yet to be dethroned in the format
Lower Text - Promo Info Tamer Battle Pack 19 CLOSECLOSE BT13-110 R Option Parallel Rare Royal Knights of the Purge Color White Form - Attribute - Type Royal Knight DP - Cost 6 Digivolve Cost 1 - Digivolve Cost 2 - Upper Text [Main] Draw 1

Other spells I can see appearing as cards include: True Resurrection: An expensive white reanimation effect Cure Wounds : A chance for R&D to try and redeem the Healing Salve card archetype Prismatic Spray : A multi-target removal spell which applies a new effect to each creature hit Wail of the Banshee/Circle of Death: Black creature sweepers Create Undead: Produce an instant army of Zombie and or Skeleton tokens, perhaps by exiling cards from graveyards as fuel Rope Trick: A defensive flicker effect for the whole team Mordenkainens Disjunction: Powerful removal for one or more artifacts or enchantments Bigbys Grasping Hand: Temporary removal along the lines of Heliods Punishment Bulls Strength/Cats Grace/Bears Endurance/Foxs Cunning/Owls Wisdom/Eagles Splendor: A cycle of team-wide keyword-granting buffs, or perhaps Auras
You know, because damage lasts "until end of turn." Because this is a kindler, gentler FAQ(TIWDAWCC), I'll answer your question instead of mocking you
These replacements werent finished with Fifth Edition and it would certainly cause issues with older players, or players who had been playing longer, loosing cards theyd played with since the beginning