That means your normal card advantage tools double as win conditions
In Commander, with its multiplayer dynamics and 100-card singleton variance, this creates a natural spectrum: decks that win, or effectively win (I'll get to this in a moment), earlier are "higher power" because they more closely approach the rules' ideal
Here is the other card I wanted to make Rainbow a variant for, "Rocket-Powered Turbo Slug" (Link: scryfall.com/card/unh/87/rocke)
So long as you control a Blackwing Synchro Monster (or a Black-Winged Dragon), you can activate Blackbird Close from the Hand
I'll walk through each archetype in order and explain its mechanical identity
"I think the Alpha set will become like the first Superman comic book," he said