Nonland permanents don't untap during their controllers' untap steps.
At the beginning of your upkeep, you lose 2 life.
Illustrated by Nelson DeCastro · Mercadian Masques · #77
There are no rulings for Embargo.
At the beginning of your end step, untap all nonland permanents you control.
Lands don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player untaps a land they control.
Permanents don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player chooses a permanent for each card in their graveyard, then untaps those permanents.
Enchant artifact or creature
Enchanted permanent doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted permanent's controller, that player loses 1 life.
Nonbasic lands don't untap during their controllers' untap steps.
Creatures don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player may choose any number of tapped nongreen creatures they control and pay for each creature chosen this way. If the player does, untap those creatures.