pyroar pokemon card (Mega Rising #46/331, 3-Diamonds) variation to centering Custom Pokémon Card Starfire's Pyroar

Then after Amoeboid makes your opponent's creature count as a sliver, you use the Overlord's second ability to gain permanent control of your opponents creature by turning it into a sliver

Smile at Death is a five-mana do-nothing, but if you do untap, its probably better than on-rate for the first trigger

Courtesy of Wizards of the Coast (WotC) and Commander at Home, check out the Sliver Swarm Commander Deck from Commander Masters

So perhaps the question isn't 'why is this spiking' but 'why isn't this spiking harder?' One reason could be that many players aren't a fan of infinite turn combos

the decks with Caretaker's Talent and Up the Beanstalk) so the relative lack of redundancy in these decks makes Duress have more backbreaking potential than usual

Such a Cube would generally lean more on cool things than powerful things, which is arguably the most fun space to explore