Group Hug wants to moderate interaction to encourage a balanced game state, use the effects and resources they provided as a weapon to win the game, and provide themselves with the most resources
When it latches onto its victim, it slices away the target's memories one by one until nothing remains but an all-encompassing fear that shines like a beacon and makes any chance of escape impossible
It's also hate that doesn't necessarily conflict with some other artifact strategies the way Stony Silence and others might - if a player has more expensive artifacts in their deck, for instance, Meltdown is still a great sideboard card that likely won't destroy their own game pieces but will still affect a cheaper-costed deck
Given the wide array of applications, Im genuinely surprised this card doesnt see more widespread play
In particular, Apocalypse was one of the few Magic: The Gathering sets to focus almost exclusively on enemy color pairs
Wizards of the Coast gets to pull out the stops and showcase a whole bunch of different methods Surveil can be used