Giving all your creatures one counter is strong, but far from gamebreaking
While you might not come across every top-level deck at your local card store, its good to have an idea of whats currently in vogue so you can plan for it and try to add some counters to your deck
Perhaps the greatest feature of Modern is the ridiculously large card pool that it contains
Those costs could cover an array of possibilities, ranging from some sort of benefit (e.g., Farmstead), preventing a negative consequence like Force of Nature's above, or avoiding the obligation to sacrifice a permanent, such as on the Legends card Nicol Bolas
(Dont apply Weakness and Resistance for Benched Pokmon.) Hisuian Decidueye V [F] Mountain Hunt: Search your deck for up to 2 cards and put them into your hand
This is as close to restarting the game as one can get without downright cheating