There are fewer ways to remove enchantments than creatures and so you compile formidable board states by layering enchantment after enchantment that impacts the board
This pair is obviously great in kindred creature type matters brews which are pretty common at kitchen table formats and play from Simic Elves to Mono-Blue or Azorius Merfolk to Wizards to all color Slivers
The new cards had a high support level for Dragon-type, with some new cards to add to a player's Dragon deck, including Dragonite and Regidrago
Sure, Kaervek's Torch can kill one creature or be sent to the dome for the win, Ray of Command would generate at minimum two-for-one card advantage every time it was cast
If you happen to control your Commander, which in most cases you will, you get to do both of those effects
It can be a game-ender in a deck full of disruption and control