Yes, since emerge casts the card, effects can reduce the cost of cards you cast
Arvin (Obsidian Flames) ~$5 Arvin's popularity both competitively and from the Scarlet & Violet games pushes his card's value up
Sadly, this isnt a great payoff for a 9-mana investment that, to begin with, requires your opponents to have targetable creatures for you to tap down
In fact, of the 50 most expensive (non-Standard) cards in the Modern format, 38 have already been reprinted in Masters sets (or, in rare cases, other supplemental products) at least once, and this 76% reprint rate will likely increase as Masters 25 spoilers roll out starting tomorrow
If a creature entering the battlefield has riot but can't have +1/+1 counters put on it, it gains haste
Many cards find their ways into players' hearts because the Flavor Text accompanying the card ties everything together and is often hilarious