We have taken this measure to ensure that you are human
Sphere of Safety Sphere of Safety taxes your opponents for each enchantment you control just to attack you
Teferi's last ability means that in order for an opponent to cast a spell, it must be that opponent's turn, during a main phase, and the stack must be empty
The drawback of also providing an opponent with three cards will feel pretty terrible if your game is down to two players, but the rest of the time, youll often be in a position where those cards could be granted for favors (Dont attack me for the next two turns!) or in order to help another weaker player take down the table threat
Historically, red-white has been the worst color combination for card draw, but its received some new tools recently to help mitigate the issue
On your end step you'll create X 1/1 Black Fungus creature tokens where X is the number of times a permanent card went into the graveyard