Many of these spells are indeed pulled directly from Magic history
I think so, but the main takeaway isn't that, the main takeaway is that there will never be fewer effects that break this card than there are now, but there are going to be more and more each year
There's been a trickle of additional enrage creatures in other sets, including the following: Marvel Super Heroes (Bruce Banner/The Incredible Hulk) Teenage Mutant Ninja Turtles (Raphael, Ninja Destroyer) Fallout (Strong, the Brutish Thespian) Alchemy: Ixalan (Stalwart Speartail) Jurassic World Collection (Indoraptor, the Perfect Hybrid) Modern Horizons 2 (Urban Daggertooth) Forgotten Realms Commander (Vrondiss, Rage of Ancients) Commander 2019 (Apex Altisaur) #24
(Intimidation)" Discarding cards is a cost, but sending a monster from the field to his GY is an effect
Dracoback, the Rideable Dragon is here to be added by Fateful Adventure and then be used as a discard by your other effect if you don't have a better discard