Like most Magic: The Gathering cards, the value of Disdainful Stroke depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Secrets of Strixhaven Mystical Archive)
It cleans up the battlefield, easily removes most of the most popular Commanders youll see, and even has a hefty effect on life totals
Mind Grind costs X and one Blue and one Black, and it reads, Each opponent reveals cards from the top of their library until they reveal X land cards, then puts all cards revealed this way into their graveyard
Nezumi Bladeblesser is at its best if you control both an enchantment and an artifact, but its still worth it when you just have one of them
If this happens, players will have a chance to cast spells and activate abilities, then there will be another cleanup step before the turn finally ends