For a deck that is mono-colored or is only one type of mana, players normally can take out an additional basic mana card, preferably not going below 20 mana to avoid becoming mana starved
You can then easily dump your infinite mana into your X spell or mana sink of choice (Comet Storm, Staff of Domination, etc.) to win the game or lock down the board
In fact, it's when they feel more real and less fantastical that they stop being fun and become a bit more, shall we say, revolting
There are several non-creature morphs in Magic, though your opponents don't know that they're non-creature permanents until you surprise them with it
Creatures like Venser, Shaper Savant, and Hullbreaker Horror can easily serve as removal, all while providing a combat-ready body
Case of the Shifting Visage gives you repeated surveil triggers on your upkeep