Instead of these, it's created 'Welcome Decks'
And each time you increase that loyalty count, you have a better chance of getting a powerful 2nd ability to work
(The earliest example would be Gauntlet of Might, but this shows the design technology being used more readily.) Artifacts would go on to care about specific colors to remain narrow, a great tool in the box
The recent cube meta has shifted a little away from raw speed and towards more purely powerful cards which also makes Blightning shine at the moment
The copy will then resolve like a normal spell, after players get a chance to cast spells and activate abilities
Other cards that will likely be key to such a strategy include Helping Hand, Thought-Stalker Warlock, and Treacherous Greed