mtg cards that give negative counters Futhark Counter Dice Set - 25 Compact Multicolored Acrylic Dice with Plus/Minus - Easy to Carry & Easy to Read Annnnd some minus counter support.

You can also use it to strip out two loyalty counters per 'walker which is brilliant against multiple planeswalkers

It also costs to cast so someone will probably just win before you Yawgmoth's Bargain - This is a Necropotence that costs with the benefit of no-delay on the draws

Card Name Mana Cost Type Legendary Creature Human Noble Warrior Rarity Rare rules Text When Jill enters, return up to one other target nonland permanent to its owner's hand., : Exile Jill, then return it to the battlefield transformed under its owner's control

I dont recall much of anyone clamoring for a zombie general in White, but after Amonkhet , cards like Wayward Servant and Aven Wind Guide were going to be looking for a home eventually

BROTHERHOOD REGALIA & EXCALIBUR SWORD OF EDEN I have #4 as a tie between to hugely impactful Equipment cards: Brotherhood Regalia and Excalibur