Double layer deck protectors are allowed, provided the outer layer must be a transparent card protector (Without any designs)
Use Special Energy to cover weaknesses or give utility
Spectral Adversary Imagine being attacked by a large army only to surprise your opponent by flashing in this blue creature
It also helps that this is an incredibly silly effect - the sort of thing we'd expect to see in an unset than on a regular Magic card - and tied to a very popular Marvel character
And sometimes, the decks focus is something silly like Ramirez DePietro being awesome, getting a ship, pirates, stolen booty (artifacts from opponents most often), a cannon, and Ramirez at the helm
Its not the best metagame for it, but once blue control gets better, Teferi gets better as well