Scourge of Valkas is another great source of repeatable target removal
Short answer: It depends, drastically
This enchantment is a fixed version of Recurring Nightmare, but its still an extremely powerful addition to the Commander format that can enable all sorts of shenanigans with powerful ETB triggers
These following Pokemon unless otherwise noted are version exclusive: HeartGold (HG): Mankey (Routes 9 and 42) Primeape (Route 9 and Cerulean Cave) Growlithe (Route 7, Route 8, Route 37, Route 36, Route 37, Route 48) Spinarak (Route 2, Route 30, Route 31, Route 37, Routes 1, 2, 12, 13, 14, 15, 18, 21, 22, 26, 27, 29, 30, 31, 34, 35, 36, 37, 38, 39, 47 & 48, New Bark Town, Cherrygrove City National Park, Ecruteak City, Safari Zone Gate, Pallet Town, Viridian City, Viridian Forest, Fuchsia City (Headbutt) Ariados (Route 2, Viridian Forest (Headbutt)) Gligar (Route 45) Mantine (Route 41) Phanpy (Route 45, Mt
Right off the bat, Narset is a notoriously difficult commander to deal with, having both hexproof, so your opponent can't target her, and first strike, making her more resilient in combat
Inevitable Defeat is premium removal
