Obviously with this being Magic there is rarely a short answer
But there are a couple of reasons the companion rule didnt have that kind of success
You would not only need Trade Tokens to trade 3 cards or higher but also both players need to have the equivalent tokens to make the exchange
Good for a chuckle (if you get the reference), but Cyclopean Titan and Seasoned Weaponsmith play miserably and Golgari Death Swarm has no interesting mechanical designits just a Serra Angel in a color combination that can but never has gotten one
Ive managed to pull off that ultimate more than once in Core 2020 drafts
Ideally, this has the power of an instant Desert Twister in Dimir colors as if your foe has no hand, they discard what was bounced, but given the casting one spell restriction of the format, this is something that rarely happens here, making this just a discard of their worst card