As usual this will be a list geared towards the kind of interactive decks I like to brew
Red has plenty of cards like Jaxis, the Troublemaker that can make copies of your creatures, but nearly all of them require you to sacrifice or exile the creature at your end step
A word of caution, especially for Dread Fugues specific two-cost cap, is that trading for a cheap spell with discard only works if that spell is unique
While the first-ever Iconic cards are, understandably, fetching sizeable fees, plenty of the other "Enchanted" cards are also reaching hundreds of dollars already, and are definitely worth chasing as well
When doing so, you get to draw a card as well
Rosewater's response is a very short but welcome one