For many players, testing powerful but expensive cards like this is the perfect reason to learn how to print MTG proxies that feel authentic for their decks
Force of Negation Control decks love Force of Negation because it gives them a way to stop combo pieces or planeswalkers even when they're tapped out
I typically have less of those since in Commander it's harder to include them due to color identity restrictions
Yes, sure, it can go into any green deck and start putting counters on things, but to get the real synergies with this going, you need to be in a dedicated +1/+1 Counters deck
It means you can get Excalibur, Sword of Eden down quicker, and it means you can turn a Loran of the Third Path or Boromir, Warden of the Tower into a cheeky one mana play while deploying something bigger and scarier
Then, at the beginning of combat on your turn, you get to put X +1/+1 counters on another target Creature you control, where X is the number of experience counters you have