Lets say youre a green deck with Emerald Medallion in hand but theres a Selesnya player at the table
A discard outlet that costs five mana when your curve ends at five will not greatly enable any graveyard synergies you might have in an appropriate time scale
Persistent Petitioners Play one Persistent Petitioners , and you've got a cheap, small creature to help keep you alive and mill a few of your opponent's cards while you get the mill factory started
Rather than cards that do nothing due to being expensive and then requiring further conditions to be met to enact their effect thus ultimately doing nothing, the cube do nothings are low resource cost cards that have incredibly minor, often negligible effects
What does Capenna Express do
Ojer Taq, Deepest Foundation triples creature tokens Part of The Lost Caverns of Ixalan, Ojer Taq, Deepest Foundation is a Legendary God creature that is swiftly setting itself apart as one of the most sought-after cards in the deck