(If it annoys you that Pact of Negation can target creature spells when Negate and Force cannot, I sympathize Pact unfortunately predates Negate, which messes up this neat bit of Magic taxonomy.) Force of Negation is effectively a compromise with players who begged for free counterspells to hamper the ultra-aggressive combo decks in Modern
Twice that many instead of one additional is a huge upgrade, so make the most of this when you warp it into play
Cards like Path to Exile and Fatal Push are almost always worth a few slots
While this artifact will have little to no effect on a wall-tribal player, as the majority of walls have insignificant power, the card can be quite problematic for one's opponents
The flavor text for this card makes reference to the Chaos Emeralds, which are also featured in the art of many of the Sonic Secret Lair cards
As long as Group Hug is the intention, and the build around, it's excellent in this way